New York City · Through Local Law 2026/135 (enacted August 31, 2026)

N.Y.C. Admin. Code § BC 3314: Section BC 3314: Scaffolds

3314.1 Scope.

Scaffolds utilized in conjunction with the construction or demolition of a building or structure shall be erected and maintained in accordance with the requirements of this section so that the safety of public and property will not be endangered by falling material, debris, or equipment, or by collapse of the scaffold.

Exceptions:

1. The requirements of this section shall not apply to window washing equipment permanently anchored to the building and subject to the jurisdiction of the New York State Department of Labor. However, this exemption shall not apply when such equipment is used for activities other than window washing.

2. Mast climbers are only required to comply with the requirements of Section 3314.19.

3314.1.1 Height.

For the purposes of this section, the height of a scaffold shall be measured from the base of the scaffold to the top of the uppermost vertical member of the scaffold, with any temporary structure, but not any permanent structure, on which the scaffold rests included in the height measurement.

3314.2 Permit.

Prior to the installation and use of a scaffold the contractor or licensee who is to install the scaffold, or a designated representative of the installer, shall obtain a permit for such scaffold. The permit requirements of this section are independent of the design requirements of Section 3314.3. Sections 3314.3.1 through 3314.3.4 may require a scaffold to be designed even if Section 3314.2 does not require a permit for such scaffold.

Exceptions:

1. A permit is not required for a two-point, single tier, suspended scaffold suspended from a parapet using C-hooks.

2. A permit is not required for a suspended scaffold provided Items 2.1 through 2.3 are complied with:

2.1. The scaffold is installed and used in conjunction with a construction, alteration, or demolition project that holds a valid permit from the department for such project;

2.2. The site is closed to the public and enclosed with a fence in accordance with Section 3307.7; and

2.3. The installation, use, and removal of the scaffold is confined within the site or over an area protected by sidewalk sheds or roof protection.

3. A permit is not required for a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm
													
													
													
													2
													
													
													
													) or less in size.

4. A permit is not required for a supported scaffold, provided Items 4.1 through 4.6 are complied with:

4.1. The scaffold is not an outrigger scaffold (thrust out);

4.2. No hoisting equipment with a manufacturer's rated capacity greater than 2,000 pounds (907kg) will be located on the scaffold;

4.3. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m
													
													
													
													2
													
													
													
													) (e.g. a light duty scaffold, a medium duty scaffold, or a heavy duty scaffold);

4.4. The scaffold is less than 40 feet (12 192 mm) in height;

4.5. Side-arm or end-arm scaffold brackets are used exclusively for the support of workers; and

4.6. Where the scaffold has a height-to-base ratio (including outriggers supports, if used) of more than four to one (4:1), it is restrained in accordance with Section 3314.9.1.

3314.3 Design.

Scaffolds shall be designed in accordance with Sections 3314.3.1 through 3314.3.4. The design requirements of this section are independent of the permit requirements of Section 3314.2. Sections 3314.3.1 through 3314.3.4 may require a scaffold to be designed even if Section 3314.2 does not require a permit for such scaffold.

3314.3.1 Supported scaffolds and outrigger scaffolds (thrust out).

Supported scaffolds and outrigger scaffolds (thrust out) shall be designed by a registered design professional. Where the scaffold is to be located upon a sidewalk shed, the requirements of Section 3307.6.4.2.2 shall also apply.

Exception: Design is not required for a supported scaffold, provided Items 1 through 6 are complied with:

1. The scaffold is not an outrigger scaffold (thrust out);

2. No hoisting equipment with a manufacturer's rated capacity greater than 2,000 pounds (907kg) will be located on the scaffold;

3. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m
													
													
													
													2
													
													
													
													) (e.g. a light duty scaffold, a medium duty scaffold, or a heavy duty scaffold);

4. The scaffold is less than 40 feet (12 192 mm) in height;

5. Side-arm or end-arm scaffold brackets are used exclusively for the support of workers; and

6. Where the scaffold has a height-to-base ratio (including outriggers supports, if used) of more than four to one (4:1), it is restrained in accordance with Section 3314.9.1.

3314.3.2 Suspended scaffolds.

Suspended scaffolds shall be designed by a registered design professional.

Exceptions:

1. Design is not required for a single tier non-adjustable suspended scaffold whose platform is 40 square feet (3720 mm
													
													
													
													2
													
													
													
													) or less in size.

2. In lieu of a registered design professional, a two-point, single tier, suspended scaffold may be designed by a licensed rigger provided Items 2.1 and 2.2 are complied with and either Items 2.2.1 or 2.2.2 are complied with:

2.1. The scaffold or scaffold outrigger beam or suspension member support structure is not anchored to the building or structure, other than tiebacks; and

2.2. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m
													
													
													
													2
													
													
													
													); and either

2.2.1. The scaffold utilizes c-hooks; or

2.2.2. The distance from floor or roof on which the support structure is located to the top of the outrigger beam or suspension member support structure is less than 15 feet.

3. In lieu of a registered design professional or a licensed rigger, a two-point, single tier, suspended scaffold meeting the requirements of Item 2 of these exceptions that is used exclusively for sign hanging work may be designed by a licensed sign hanger.

3314.3.3 Drawings.

Where design is required by this section, the drawings shall be specific to the site and shall, at a minimum, include a plan view and an elevation view, with full dimensions, detailing:

1. The scaffold and location of the scaffold;

2. The base structure (e.g. roof and parapet, sidewalk shed);

3. Connections and attachments to the base structure, including but not limited to anchorages, fastenings, tie-ins, tie-backs, and lifelines;

4. Any temporary or permanent structural modifications required to the base structure;

5. Netting with specific type and manufacturer indicated, overhead protection, or any other equipment attached to the scaffold. The effect of wind on the netting shall be accounted for in the design of the scaffold;

6. Any hoisting equipment located on the scaffold;

7. Platform levels, support centers, and offsets, along with the maximum number of levels to be loaded simultaneously and the maximum loads to be imposed;

8. Temporary construction, such as platforms, runback structures, other scaffolds, mast climbers, cranes, derricks, hoists, horizontal netting, cocoon systems, climbing formwork, sidewalk sheds, fences, and barricades that may present interference for the scaffold;

9. For a suspended scaffold, ropes, number of clips, and counterweights, outrigger beams, c-hooks, or other support devices, blocking, saddles, or equivalent, and the rated load of the scaffold motor (hoist) as established by the manufacturer;

10. For a suspended scaffold, the location of the scaffold during out of service periods, and if the scaffold will not be lowered to the street, sidewalk shed, building setback, equivalent adequate structure, or ground during out of service periods, how the scaffold will be secured while work is not being performed;

11. For a supported scaffold, structural members, as well as the founding of the scaffold, including but not limited to sidewalk sheds, floors, roofs, or ground;

12. References to related job numbers (e.g. the sidewalk shed upon which the scaffold rests, the underlying permit for facade or construction work); and

13. Where anchors are utilized:

13.1. Type of anchor and manufacturer of anchor;

13.2. Procedures for the installation, maintenance, and use of the anchor as specified by the manufacturer of the anchor; and

13.3. Procedures for the testing and inspection of the anchor as specified by the manufacturer of the anchor, as well as special inspection requirements when special inspection is required by Chapter 17.

3314.3.4 Loads imposed.

Where a supported scaffold requiring design in accordance with Section 3314.3.1 imparts a load on a temporary or permanent structure, including but not limited to a sidewalk shed, roof, setback, or vault, the design drawings required by Section 3314.3.3 shall either be:

1. Sealed and stamped "reviewed for loads imposed" by the registered design professional responsible for the underlying structure and contain a note signed and sealed by such registered design professional indicating that either no structural modifications are required to the underlying structure, or indicating that structural modifications to the underlying structure have been incorporated into the drawings for the underlying structure;

2. Accompanied by a signed and sealed letter from the registered design professional responsible for the underlying structure indicating that he or she has reviewed the scaffold drawings for loads imposed on the underlying structure, with the drawing numbers and drawing dates referenced, and a statement indicating that either no structural modifications are required to the underlying structure, or indicating that structural modifications to the underlying structure have been incorporated into the drawings for the underlying structure; or

3. For a project where there is no registered design professional responsible for the underlying structure, a signed and sealed letter from the registered design professional who developed the design drawings required by Section 3314.3.3 indicating that he or she has investigated the underlying structure, and a statement indicating that either no structural modifications are required to the underlying structure, or indicating that structural modifications to the underlying structure have been incorporated into the plans required by Section 3314.3.3.

3314.4 Installation, inspection, repair, maintenance, adjustment, use, and removal of scaffolds.

Scaffolds shall be installed, inspected, repaired, maintained, adjusted, used, and removed in accordance with the specifications of the manufacturer, where such specifications exist, and the requirements of Section 3314.4.1 through 3314.4.8.

3314.4.1 Installation and removal.

Scaffolds shall be installed and removed in accordance with the requirements of Section 3314.4.1.1 through 3314.4.1.5. Where modifications to the base structure are required to support the scaffold, the scaffold shall not be installed until such modifications have been completed.

3314.4.1.1 Supervision of suspended scaffold installation and removal.

Suspended scaffolds shall be installed and removed by or under the direct and continuing supervision of a licensed rigger.

Exceptions: In lieu of direct and continuing supervision by a licensed rigger:

1. The installation and removal of a suspended scaffold utilized exclusively for sign hanging work may be performed by or under the direct and continuing supervision of a licensed sign hanger.

2. The installation and removal of a suspended scaffold may be supervised by a competent person designated by the scaffold permit holder, or where there is no scaffold permit holder, designated by the scaffold controlling entity, provided such scaffold is installed and removed in conjunction with:

2.1. The construction of a new building;

2.2. The full demolition of an existing building;

2.3. The vertical or horizontal enlargement of an existing building; or

2.4. The alteration, maintenance, or repair of a facade of a major building where a site safety plan is required by Section 3310.3.

3. The lateral relocation of a wheel or track mounted scaffold and tiebacks may be supervised by a competent person designated by the scaffold controlling entity provided the design developed by the registered design professional allows for such relocation, and also provided such lateral relocation occurs without the addition or removal of any part, component, attachment, counterweight, anchorage, or connection to the base building or structure, other than tie-backs so long as such tie-backs are placed as designated on the approved plan.

3314.4.1.2 Supervision of supported scaffold installation and removal.

The installation and removal of a supported scaffold shall be supervised by a competent person designated by the contractor installing or removing the scaffold.

3314.4.1.3 Supervisor to be present at the site.

The licensee or competent person supervising the installation or removal of a scaffold shall be present at the site during all installation and removal work and shall have the ability to communicate with all individuals involved in the installation or removal work. Where only one person is installing or removing a scaffold, such person shall be deemed to be the supervisor present at the site and must have the qualifications and training required by this chapter to serve as a supervisor for such work.

Exception: The licensed rigger or sign hanger does not have to be present at the site, provided a suspended scaffold foreman is present at the site during all installation and removal work and provided such suspended scaffold foreman has the ability to communicate with all individuals involved in the installation or removal work.

3314.4.1.4 Training.

All individuals involved in the installation or removal of a supported scaffold or an adjustable suspended scaffold, including the person supervising such work, shall have been trained as required by Section 3314.4.5.

3314.4.1.5 Notification of adjustable suspended scaffold installation and removal.

Prior to the initial installation of the adjustable suspended scaffold at a site, and prior to the final removal of the adjustable suspended scaffold at a site, the department shall be notified at least 24 hours, but not more than 48 hours, prior to such installation or removal. Should the notification date fall on a weekend or official holiday, the notification shall be made on the last business day before the commencement date of the installation or removal. Such notification:

1. Where the installation or removal occurs under the direct and continuing supervision of a licensed rigger or sign hanger, shall be made by such licensee; or

2. Where the installation or removal does not occur under the direct and continuing supervision of a licensed rigger or sign hanger, shall be made by the designer of the scaffold.

3314.4.2 Use of scaffolds.

Scaffolds shall be used in accordance with the requirements of Sections 3314.4.2.1 through 3314.4.2.5.

3314.4.2.1 Supervision of suspended scaffold use.

Suspended scaffolds shall be used by or under the direct and continuing supervision of a licensed rigger.

Exceptions:

1. In lieu of direct and continuing supervision by a licensed rigger, the use of a suspended scaffold utilized exclusively for sign hanging work may be performed by or under the direct and continuing supervision of a licensed sign hanger.

2. In lieu of direct and continuing supervision by a licensed rigger, the use of a suspended scaffold may be supervised by a competent person designated by the scaffold controlling entity, provided such scaffold is used in conjunction with:

2.1. The construction of a new building;

2.2. The full demolition of an existing building;

2.3. The vertical or horizontal enlargement of an existing building; or

2.4. The alteration, maintenance, or repair of a facade of a major building where a site safety plan is required by Section 3310.3.

3. Where a scaffold is used by or under the direct and continuing supervision of a licensed rigger, a registered design professional who is not in the direct employ of the licensee or business of the licensee may ride on a suspended scaffold to perform inspections provided the registered design professional:

3.1. Does not perform construction, maintenance, repair, or demolition work from the scaffold;

3.2. Does not operate the scaffold; and

3.3. Is familiar with the use of the scaffold, safety equipment, and emergency procedures.

4. Where a scaffold is used by or under the direct and continuing supervision of a licensed rigger, a specialty crew who is not in the direct employ of the licensee or business of the licensee may use the suspended scaffold, provided:

4.1. The work requires a specialty trade, including but not limited to work with hazardous materials or chemicals;

4.2. The crew is in accordance with rules promulgated by the commissioner; and

4.3. The members of the crew are approved by the commissioner.

3314.4.2.2 Supervision of supported scaffold use.

The use of a supported scaffold shall be supervised by a competent person designated by the scaffold controlling entity.

3314.4.2.3 Installer who is not the scaffold controlling entity.

Where the contractor or licensee that installed the scaffold is not the scaffold controlling entity, the installer shall have no supervisory responsibility for the use of the scaffold.

3314.4.2.4 Supervisor to be present at the site.

The licensee or competent person supervising the use of a scaffold shall be present at the site during all times the scaffold is in use and shall have the ability to communicate with all individuals using the scaffold; however, such supervisor does not need to be on the scaffold.

Exception: The licensed rigger or sign hanger does not have to be present at the site, provided a suspended scaffold foreman is present at the site during all times the scaffold is in use and provided such suspended scaffold foreman has the ability to communicate with all individuals using the scaffold. Such suspended scaffold foreman does not need to be on the scaffold.

3314.4.2.5 Training.

All individuals using a supported scaffold or an adjustable suspended scaffold, including the person supervising such use, shall have been trained as required by Section 3314.4.5.

3314.4.3 Inspections.

Scaffolds shall be inspected in accordance with the requirements of Sections 3314.4.3.1 through 3314.4.3.6.

3314.4.3.1 Inspection prior to the installation of a suspended scaffold.

Prior to the installation of a suspended scaffold, all suspended scaffold support devices, including but not limited to outrigger beams and C-hooks, along with the support surface/structure upon which they rest (e.g. roof, parapet), shall be inspected by a qualified person. The qualified person shall:

1. Where the installation or removal occurs under the direct and continuing supervision of a licensed rigger or sign hanger, be designated by such licensee; or

2. Where the installation or removal does not occur under the direct and continuing supervision of a licensed rigger or sign hanger, be designated by the designer of the scaffold.

Exception: An inspection is not required for a nonadjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.1.1 Special provision for parapet clamps.

Where parapet clamps are to be utilized, the qualified person who inspects the support surface/structure as required by Section 3314.4.3.1 shall be a registered design professional. The registered design professional shall confirm, based on the inspection and evaluation of the support surface/structure, that the support surface/structure is capable of supporting the loads to be imposed, including any eccentric load introduced by the parapet clamp.

3314.4.3.1.2 Documentation of parapet clamp inspection and evaluation.

Documentation of the inspection and evaluation required by Section 3314.4.3.1.1 shall be included with the installation inspection report required by Section 3314.4.3.2.1. Such documentation shall be signed, sealed, and dated by the registered design professional that performed the inspection and evaluation.

3314.4.3.2 Installation inspection for suspended scaffolds.

Upon completion of the installation of a suspended scaffold, the scaffold, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold shall be inspected prior to use to verify that they are in a safe condition and, where design is required, installed in accordance with the design drawings. The individual performing the inspection shall have completed the training required by Section 3314.4.5.3 and shall be:

1. Where the scaffold was designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger:

1.1. The licensee; or

1.2. A suspended scaffold foreman; or

2. Where the scaffold was not designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger:

2.1. The scaffold designer;

2.2. An employee of the scaffold designer under his or her direct supervision;

2.3. A registered design professional retained by the scaffold designer; or

2.4. An employee of such retained registered design professional under the direct supervision of such retained registered design professional.

Exceptions: An installation inspection is not required for:

1. A non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed; or

2. The lateral relocation of a wheel or track mounted scaffold and tiebacks, provided the design developed by the registered design professional allows for such relocation, and also provided such lateral relocation occurs without the addition or removal of any part, component, attachment, counterweight, anchorage, or connection to the base building or structure, other than tie-backs. Following such lateral relocation, the scaffold, and any re-installed tie-back, shall be inspected and documented under the requirements of Section 3314.4.3.4.

3314.4.3.2.1 Installation inspection report.

The results of the inspection shall be documented in an installation inspection report signed and dated by the person who performed the inspection. The scaffold shall not be used until it has passed such inspection and the installation inspection report has been completed.

Exception: An installation inspection report is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.3 Installation inspection for supported scaffolds.

Upon completion of the installation of a supported scaffold, the scaffold, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold shall be inspected prior to use to verify that they are in a safe condition and, where design is required, installed in accordance with the design drawings. Such inspection shall be performed by a qualified person who has completed the training required by Section 3314.4.5.1 and who is designated by the designer, the installer, or a third party acceptable to both the designer and the installer. The results of the inspection shall be documented in an installation inspection report signed and dated by the person who performed the inspection. The scaffold shall not be used until it has passed such inspection and the installation inspection report has been completed.

Exceptions:

1. Where additional components or attachments are installed to an existing supported scaffold, or where existing deck planking or guardrails are relocated to a different level or location, the installation inspection and installation inspection report shall be limited to such components or attachments and related anchorages.

2. An inspection and report is not required for a supported scaffold that, pursuant to Section 3314.3.1, is not required to be designed.

3314.4.3.4 Pre-shift inspection for a suspended scaffold.

Suspended scaffolds shall be inspected prior to each shift, and after any occurrence which could affect a scaffold's structural integrity, in accordance with a pre-shift inspection checklist that meets the requirements of Section 3314.4.3.4.2. The scaffold shall not be used until it has passed such inspection and the results have been documented on the checklist. The checklist shall be kept at the site by the scaffold controlling entity.

Exception: A pre-shift inspection is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.4.1 Responsibility for performing the inspection and signing the checklist.

The inspection required by Section 3314.4.3.4 shall be performed by, and the checklist required by Section 3314.4.3.4.2 shall be signed and dated by the licensee, suspended scaffold foreman, or competent person who is onsite and responsible for supervising the scaffold under the provisions of Section 3314.4.2.4. Such individual shall have completed the training required by Section 3314.4.5.3.

3314.4.3.4.2 Pre-shift inspection checklist contents.

The pre-shift inspection checklist shall be based on the manufacturer requirements for the inspection of the scaffold, where such requirements exist, and shall, at a minimum, include an inspection prior to each shift to verify the scaffold, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold, remain in a safe condition for use, and shall also include a comprehensive inspection following high winds. Such checklist shall be:

1. Where the scaffold was designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger, developed by the licensee; or

2. Where the scaffold was not designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger, developed by the registered design professional who designed the scaffold.

Exception: A pre-shift inspection checklist is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.5 Pre-shift inspection for a supported scaffold.

Prior to each shift, and after any occurrence which could affect a scaffold's structural integrity, the supported scaffold shall be inspected by the competent person supervising the use of the scaffold in accordance with Section 3314.4.2.2 to verify the scaffold, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold, remain in a safe condition for use. Such competent person shall have completed the training required by Section 3314.4.5.2. The results of the inspection shall be documented in a pre-shift inspection report signed and dated by the person who performed the inspection. The scaffold shall not be used until it has passed such inspection and the pre-shift inspection report has been completed.

Exception: An inspection report is not required for a supported scaffold that is not required to be designed under Section 3314.3.1.

3314.4.3.6 Inspection following a site repair or adjustment.

Following a repair or adjustment to a scaffold at a site, the portion adjusted or repaired shall be inspected by the person who supervised the adjustment or repair in accordance with Sections 3314.4.6 or 3314.4.7 to verify the adequacy of such adjustment or repair. A description of the adjustment or repair, and the results of the inspection, shall be recorded, signed, and dated by such supervisor and kept with the inspection report required by Sections 3314.4.3.4 or 3314.4.3.5. The scaffold shall not be used until it has passed such inspection and the results of the inspection have been documented.

Exceptions:

1. The scaffold may be used prior to the inspection where authorized in accordance with Section 3314.4.4.7.

2. An inspection and report is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.4 Safeguards.

The safeguards required by Sections 3314.4.4.1 through 3314.4.4.12 shall be observed at all times.

3314.4.4.1 Safe working order.

Scaffolds, including all components of and attachments to the scaffold, and all supports and anchorages of the scaffold, shall be provided to the site in a safe working order by their respective owner, with no known hazardous conditions, defective repairs, or maintenance problems that could compromise the safety of the public or property. All scaffolds shall be kept in a safe condition at the site by the scaffold controlling entity. Every damaged or weakened scaffold shall be immediately repaired or secured and shall not be used until satisfactory repairs have been completed, and the scaffold is inspected under the provisions of Section 3314.4.3.

3314.4.4.2 Loads.

At no time shall a scaffold be loaded beyond the capacity of the scaffold or the ground or structure upon which it rests or is supported. Loads shall not be concentrated so as to cause stresses in excess of the allowable values designated for the applicable material described in this code.

3314.4.4.3 Capacity.

Scaffolds shall meet the following capacity requirements.

3314.4.4.3.1 Scaffold and components.

Each scaffold, and its components, shall be capable of supporting, without failure, its own weight and at least four times the maximum intended load applied or transmitted to it. Where applicable, scaffolds and their connections to the building or structure shall be designed to meet the anticipated loads during construction or demolition work, including wind loads as prescribed in Chapter 16.

3314.4.4.3.2 Suspension rope on nonadjustable suspended scaffolds.

Each suspension rope, including connecting hardware, used on nonadjustable suspended scaffolds shall be capable of supporting, without failure, at least six times the maximum intended load applied or transmitted to the rope.

3314.4.4.3.3 Suspension rope on adjustable suspended scaffolds.

Each suspension rope, including connecting hardware, used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least six times the maximum intended load applied or transmitted to that rope with the scaffold operating at the rated load of the hoist.

3314.4.4.3.4 Direct connections to roofs, floors, and counterweights.

Direct connections to roofs and floors, and counterweights used to balance adjustable suspension scaffolds, shall be capable of resisting at least four times the tipping moment imposed by the scaffold operating at the rated load of the hoist.

3314.4.4.4 Stable and secure.

The scaffold and all materials and equipment located on or used from the scaffold shall be kept stable and secure at all times to prevent the scaffold from losing balance, overturning, or collapsing, and to prevent any object from falling from the scaffold.

3314.4.4.5 Dislodgement.

Material and equipment susceptible to dislodgment shall not be stored on a scaffold while work is not being performed.

3314.4.4.6 Winds.

Where sustained winds or wind gusts at the site exceed 30 miles per hour, the installation, repair, maintenance, adjustment, use, operation, and removal of scaffolds located on the roof or setback of a building, exterior to a building or structure, on a working deck, or in an area with an unenclosed perimeter shall cease and the scaffold shall be secured. If the manufacturer or designer of the scaffold recommends work to cease at a lower wind speed, such recommendation shall instead apply. Wind speed shall be determined based on data from the nearest United States weather bureau reporting station, or an anemometer located at the site, freely exposed to the wind, and calibrated in accordance with ASTM D 5096. No scaffold installation, repair, maintenance, adjustment, use, operation, or removal work shall commence where the weather forecast indicates the work will not be able to be safely completed and the scaffold secured before sustained winds or wind gusts exceed the thresholds established by this section.

3314.4.4.7 Use during installation, repairs, maintenance, adjustments, or removal.

Only personnel, materials, and uses authorized by the person responsible for supervising the installation, repair, maintenance, adjustment, or removal of a scaffold shall be located on and using the scaffold during such work.

3314.4.4.8 Non-combustible construction.

With the exception of the planking, the following scaffolds shall be constructed of non-combustible materials:

1. Exterior scaffolds exceeding 75 feet (22 860 mm) in height.

2. Interior scaffolds exceeding 21 feet (6401 mm) in height.

3. All scaffolds used in the alteration, repair, or partial demolition of buildings in Occupancy Groups I-1 to I-4.

3314.4.4.9 Capacity identification for suspended scaffolds.

Suspended scaffold motors shall contain a plate from the manufacturer of the motor indicating the rated load of the motor. Swaged attachments or spliced eyes on wire suspension ropes shall be tagged in accordance with the requirements of Section 3314.11.8. Identification required by this section shall be maintained so as to be legible during the life of the element. Missing or illegible identification shall be replaced by a qualified person in accordance with the requirements of the manufacturer of the component or the testing entity authorized by Section 3314.11.8.

3314.4.4.10 Prohibition on shore or lean-to scaffolds.

The use of shore or lean-to scaffolds is prohibited.

3314.4.4.11 Accumulation of debris.

Debris shall not be allowed to accumulate on platforms.

3314.4.4.12 Precautions while working around powerlines.

The clearance between scaffolds and power lines shall be as specified in Table 3314.4.4.12. Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as specified in Table 3314.4.4.12.

Exception: Scaffolds and materials may be closer to power lines than specified in Table 3314.4.4.12 where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines.

Table 3314.4.4.12 Minimum Distances from Power Lines

Insulated Lines
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Voltage
																		
																	
																
															
															
																
																	
																		
																			Minimum Distance
																		
																	
																
															
															
																
																	
																		
																			Alternatives
																		
																	
																
															
														
														
															
																
																	
																		Less than 300 volts
																	
																
															
															
																
																	
																		3 feet (914 mm)
																	
																
															
															
																
																	
																		
																			Two times the length of the line insulator, but never less than 10 feet (3048 mm)
																		
																	
																
															
														
														
															
																
																	
																		300 volts to 50 kilovolts
																	
																
															
															
																
																	
																		10 feet (3048 mm)
																	
																
															
														
														
															
																
																	
																		More than 50 kilovolts
																	
																
															
															
																
																	
																		10 feet (3048 mm) plus 0.4 inches (10 mm) for each 1 kilovolt over 50 kilovolts
																	
																
															
														
														
															
																
																	
																		
																			
																				Uninsulated Lines
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Voltage
																		
																	
																
															
															
																
																	
																		
																			Minimum Distance
																		
																	
																
															
															
																
																	
																		
																			Alternatives
																		
																	
																
															
														
														
															
																
																	
																		Less than 50 kilovolts
																	
																
															
															
																
																	
																		10 feet (3.1 m)
																	
																
															
															
																
																	
																		
																			Two times the length of the line insulator, but never less than 10 feet (3048 mm)
																		
																	
																
															
														
														
															
																
																	
																		More than 50 kilovolts
																	
																
															
															
																
																	
																		10 feet (3048 mm) plus 0.4 inches (10 mm) for each 1 kilovolt over 50 kilovolts

3314.4.5 Training.

Only those who are qualified to install, adjust, maintain, repair, use, or remove a scaffold, and are trained in accordance with the requirements of this section, shall perform such work or supervise such work. No person shall knowingly permit or cause an individual who does not have the experience and training required by this section to install, adjust, modify, repair, use, or remove a scaffold.

3314.4.5.1 Training for supported scaffold installers, adjusters, repairers, maintainers, or removers.

Workers who install, adjust, repair, maintain, or remove a supported scaffold that is 40 feet (12 192 mm) or more in height, including the person supervising such, shall, at a minimum, have completed a department-approved training program or course that is at least 32 hours long and shall complete a department-approved 8-hour refresher program or course every 4 years thereafter. Workers who install, adjust, repair, maintain, or remove a sidewalk shed that provides a base for a supported scaffold that is 40 feet (12 192 mm) or more in height, including the person supervising such, are subject to the above requirements.

Exceptions:

1. The installation, adjustment, maintenance, repair, or removal of a supported scaffold performed by an employee of a public utility, including the person supervising such, where such supported scaffold is located within the interior of a structure owned or operated by such utility, and when such utility has a training safety program or course of not less than 32 hours for its employees who perform such scaffold work.

2. Where existing supported scaffold deck planking or guardrails are being relocated to a different level of the scaffold in accordance with the design, such may be performed by individuals who have completed the training required by Section 3314.4.5.2.

3314.4.5.2 Training for supported scaffold users.

Individuals who use a supported scaffold, including the person supervising such, shall, at a minimum, have completed a department-approved training program or course that is at least 4 hours long and, every four years thereafter, retake the 4-hour training program or course.

Exceptions:

1. Employees of a public utility performing work while using a supported scaffold, including the person supervising such, provided that such employees are trained to be able to recognize the hazards associated with the type of supported scaffold being used and to understand the procedures to control those hazards.

2. A registered design professional who has not completed the training may use a supported scaffold to perform inspections provided the registered design professional does not perform construction, maintenance, repair, or demolition work from the scaffold.

3. The use of a stair tower/scaffold stairway/scaffold stair tower that is not connected to a scaffold work platform and is dedicated to providing temporary ingress or egress to the building or structure.

3314.4.5.3 Training for suspended scaffold supervisors.

Individuals who exercise supervisory responsibility in accordance with the requirements of Sections 3314.4.1 through 3314.4.4 for the installation, adjustment, repair, maintenance, use, or removal of a suspended scaffold shall, at a minimum, have completed a department-approved training program or course that is at least 32 hours long and, four years following completion of the 32-hour program or course, and every four years thereafter, complete a department-approved 8-hour refresher program or course.

Exception: Individuals supervising the installation, adjustment, modification, repair, use, or removal of a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm
													
													
													
													2
													
													
													
													) or less in size.

3314.4.5.4 Training for suspended scaffold installers, adjusters, repairers, maintainers, users, or removers.

Individuals who install, adjust, repair, maintain, use, or remove a suspended scaffold shall, at a minimum, have completed a department-approved training program or course that is at least 16 hours long and, four years following completion of the 16-hour program or course, and every four years thereafter, complete a department-approved 8-hour refresher program or course.

Exceptions:

1. A registered design professional who has not completed the training may ride on a suspended scaffold to perform inspections provided the registered design professional does not perform construction, maintenance, repair, or demolition work from the scaffold, or operate the scaffold, and provided the registered design professional is familiar with the use of the scaffold, safety equipment, and emergency procedures.

2. Individuals who install, adjust, repair, maintain, use, or remove a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm
													
													
													
													2
													
													
													
													) or less in size.

3. A person who possesses a valid challenge examination certificate issued prior to January 1, 2014, need not take a new 16-hour initial program or course but shall be required to complete the 8-hour refresher program or course every 4 years, beginning from the date of enactment of this code.

3314.4.5.5 Course providers.

Training programs or courses required by this section shall be conducted by a registered New York State Department of Labor apprenticeship training program or by an educational institution or school chartered, licensed or registered by the New York State Department of Education or by a provider approved by the department and presented by an instructor acceptable to the commissioner.

3314.4.5.6 Course curriculums.

All training programs or courses required by this section shall be based on the scaffold requirements of this chapter and shall include, but not be limited to, instruction on the type of scaffold the training covers and associated hazards, common causes of scaffold incidents and steps to avoid such incidents, scaffold components, scaffold connections to a structure, scaffold inspection, the maximum intended load and load-handling capacities of scaffolds, and the prevention of overload conditions. Curriculums for scaffold users shall be focused on the proper use of the scaffold. Curriculums for scaffold installers, adjusters, maintainers, repairers, and removers shall be focused on the proper execution of such work. Curriculums in excess of eight hours in length shall include a significant portion of hands-on training.

3314.4.5.7 Evaluation.

Successful completion of a training program or course that is more than 4 hours in length shall be based upon a written performance evaluation. For courses that are 16 hours or greater in length, successful completion shall also be based upon passage of a hands-on performance evaluation.

3314.4.5.8 Certificate card.

Successful completion of the training program or course shall be evidenced by a wallet size certificate card issued by the training provider and acceptable to the commissioner. Such certificate card shall be readily available to the commissioner upon request and shall contain, at a minimum, the name and photograph of the individual to whom it was issued, as well as any other information required pursuant to rules promulgated by the commissioner for a department approved training course.

3314.4.5.9 Grace period.

For individuals who fail to complete the required refresher program or course within any 4 year period, a refresher program or course shall be considered timely if completed within 1 year after the expiration date of the last previously completed initial or refresher program or course. During such period, such individual shall not perform or supervise any activity for which the lapsed training is required to perform or supervise such activity until such individual has successfully completed such refresher program or course. Where more than 1 year has lapsed, such individual shall be required to successfully recomplete the initial training program or course.

3314.4.6 Adjustments.

Scaffolds, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold installed at a site shall be adjusted under the supervision of a competent person designated by the contractor or licensee who installed the scaffold. Individuals who perform adjustments, and the person supervising such, shall be trained in accordance with Section 3314.4.5. Following the adjustment, the scaffold shall be inspected in accordance with Section 3314.4.3.6.

Exception: Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be adjusted in accordance with the requirements of Section 3307.6.

3314.4.7 Repairs.

Scaffolds, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold installed at a site shall be repaired under the supervision of a competent person designated by the equipment owner. Individuals who perform repairs, and the person supervising such, shall be trained in accordance with Section 3314.4.5. Following the repair, the scaffold shall be inspected in accordance with Section 3314.4.3.6.

Exceptions:

1. Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be repaired in accordance with the requirements of Section 3307.6.

2. Components and attachments may be replaced under the supervision of a competent person designated by the contractor or licensee who installed the scaffold.

3314.4.8 Maintenance.

Scaffolds, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold installed at a site shall be maintained in a good condition by a qualified person designated by the scaffold controlling entity. Individuals maintaining a scaffold shall have been trained in accordance with Section 3314.4.5. Individuals who maintain an adjustable suspended scaffold hoist shall also have been trained and authorized by the manufacturer of the scaffold hoist. A description of the maintenance shall be recorded, signed, and dated by the person who performed the maintenance and kept with the inspection checklist or report required by Sections 3314.4.3.4 or 3314.4.3.5.

Exceptions:

1. Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be maintained in accordance with the requirements of Section 3307.6.

2. A description of the maintenance is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.5 Platform construction.

Platforms on all working levels of a scaffold shall be fully planked or decked between the front uprights and the guardrail system supports in accordance with Sections 3314.5.1 through 3314.5.7.

Exception: Platforms used solely as walkways or used solely by workers installing or removing the scaffold shall be planked to the extent necessary to ensure the safety of the public and property.

3314.5.1 Platform spacing.

Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch (25 mm) wide except where a qualified person can demonstrate that a wider space is necessary.

3314.5.2 Maximum span for wood plank.

All lumber used in scaffolds or their supports shall be at least equal in strength and quality to construction grade lumber in accordance with Section 2301. See Table 3314.5.2 for the maximum span for scaffold planks.

Table 3314.5.2 Maximum Permissible Spans for 2-Inch Plank Used on Scaffolds

Material 
																		
																	
																
															
															
																
																	
																		
																			
																				Full Thickness Undressed Lumber
																			
																		
																	
																
															
															
																
																	
																		
																			
																				Lumber of Nominal Thickness
																			
																		
																	
																
															
														
														
															
																
																	
																		Working Load (psf)
																	
																
															
															
																
																	
																		25 
																	
																
															
															
																
																	
																		50 
																	
																
															
															
																
																	
																		75 
																	
																
															
															
																
																	
																		25 
																	
																
															
															
																
																	
																		50 
																	
																
															
															
																
																	
																		75 
																	
																
															
														
														
															
																
																	
																		Permissible Span (ft)
																	
																
															
															
																
																	
																		10 
																	
																
															
															
																
																	
																		8 
																	
																
															
															
																
																	
																		6 
																	
																
															
															
																
																	
																		8 
																	
																
															
															
																
																	
																		6 
																	
																
															
															
																
																	
																		5

For SI: 1 inch = 25.4 mm, 1 pound per square foot = 47.88 Pa, 1 foot = 304.8 mm.

3314.5.3 Minimum overhang.

The end of a platform shall extend over the centerline of its support a minimum of 6 inches (152 mm) unless cleated or otherwise restrained by hooks or equivalent means.

3314.5.4 Maximum cantilever.

The maximum cantilever shall be as follows.

3314.5.4.1 Ten feet or less.

The end of a platform 10 feet (3048 mm) or less in length shall not extend over the centerline of its support more than 12 inches (305 mm) unless the platform and its tiedown are designed by a qualified person or the platform has guardrails to prevent access to the cantilevered end.

3314.5.4.2 More than ten feet.

The end of a platform more than 10 feet (3048 mm) in length shall not extend over the centerline of its support more than 18 inches (457 mm) unless the platform and its tiedown are designed by a qualified person or the platform has guardrails to prevent access to the cantilevered end.

3314.5.5 Platform tiedown.

All platforms shall be tied down or otherwise positively restrained by hooks or equivalent means to prevent dislodgment in all directions.

3314.5.6 Platform deflection.

Platforms shall not deflect more than 1/60 of the span when loaded.

3314.5.7 Unsuitable platforms.

Unstable objects shall not be used as working platforms.

3314.6 Footings and anchorage.

The footings and anchorage for every scaffold shall be sound and rigid, capable of carrying the maximum load without settlement or deformation and secure against movement in any direction. Supports such as barrels, boxes, loose brick, loose stone, or other unstable materials shall not be used.

3314.6.1 Safe points of anchorage.

Safe points of anchorage include structural members of a building. Window washing anchors, window frames, mullions, handrails, standpipes, vents and other piping systems, electrical conduit, counterweights or similar elements shall not be used as anchors or braceback points.

Exception: Window washing anchor points that are part of the base building structure may be utilized as an anchor or braceback point for a scaffold, subject to the approval of the commissioner. The anchor points shall be inspected by a registered design professional prior to use to verify their ability to support all loads imposed. At the end of the job, the anchor points shall be restored to their original condition, any damage repaired, and inspected by a registered design professional to verify such. A report verifying such restoration and inspection shall be prepared by the registered design professional and submitted to the department.

3314.6.2 Lifeline anchorage.

Vertical lifelines shall be fastened to a fixed safe point of anchorage and shall be independent of the scaffold. Horizontal lifelines shall only be utilized where the individual who designed the scaffold in accordance with Section 3314.3 has determined vertical lifelines are not feasible (for example, lower platforms of a multi-level suspended scaffold). Where utilized, horizontal lifelines shall be secured to two or more structural members of the scaffold, or they may be looped around both suspension and independent suspension lines (on scaffolds so equipped) above the hoist and brake attached to the end of the scaffold. Horizontal lifelines shall not be attached only to the suspension ropes. Vertical and horizontal lifelines shall be protected from sharp edges and abrasion.

3314.6.3 Lifelines and suspension ropes.

Vertical lifelines, tiebacks, and suspension ropes shall each be attached to a different point of anchorage.

3314.6.4 Scaffolds supported on structure.

Loads from supported and suspended scaffolds imposed on an existing roof or floor or similar structure shall:

1. Not be concentrated so as to cause stresses in excess of the allowable values designated for the applicable material described in this code; or

2. Be distributed with dunnage or shoring so as to prevent such load from exceeding the allowable values designated for the applicable material described in this code.

3314.7 Outrigger beams.

Outrigger beams shall be made of structural metal or equivalent strength material and shall be restrained to prevent movement.

3314.7.1 Overhang.

The overhang of outrigger beams shall not exceed that specified by the design and the inboard length of beam shall be at least one and one-half times the outboard length unless otherwise designed by a registered design professional.

3314.7.2 Placement.

Outrigger beams shall be placed so that the suspension ropes will hang vertically.

3314.7.3 Outrigger beam end of suspension ropes.

Suspension ropes shall be securely fastened to the outrigger beams by steel shackles, thimbles, or equivalent means.

3314.7.4 Load end of wire suspension ropes.

The load end of wire suspension ropes shall be equipped with proper size thimbles and secured by eyesplicing or equivalent means. Where applicable, such equivalent means shall be in accordance with Section 3314.11.8.

3314.8 Guardrail system and debris netting.

The open sides and ends of scaffold platforms shall be provided with a guardrail system that meets the requirements of Section 3314.8.1 and debris netting that meets the requirements of Section 3314.8.2.

Exceptions:

1. A guardrail system and debris netting are not required while the scaffold is being installed or removed but shall be in place before the scaffold is used.

2. A guardrail system and debris netting is not required along the edge of a scaffold facing a building or structure, provided the distance from the edge of the scaffold platform to the face of the building or structure is:

2.1. For an outrigger scaffold, 3 inches (76 mm) or less;

2.2. For a scaffold used in conjunction with plastering and lathing operations, 18 inches (457 mm) or less; or

2.3. For all other scaffolds, 14 inches (356 mm) or less.

3. Debris netting is not required for a scaffold where the scaffold is set back from all adjoining property and areas that remain open to the public at a distance that is equal to or greater than half the height of scaffold, except where the scaffold is installed to provide an alternative to demolition safety zones, sidewalk sheds, safety netting, or adjoining property protection in accordance with Sections 3306, 3307, 3308, 3309, or the scaffold is installed at the edge of an unenclosed perimeter in accordance with Section 3314.9.4.

4. Debris netting is not required for a scaffold that does not require a design in accordance with Section 3314.3, except where the scaffold is installed to provide an alternative to demolition safety zones, sidewalk sheds, safety netting, or adjoining property protection in accordance with Sections 3306, 3307, 3308, or 3309, or the scaffold is installed at the edge of an unenclosed perimeter in accordance with Section 3314.9.4.

5. A guardrail system and debris netting is not required for a supported scaffold whose topmost platform is 6 feet (1829 mm) or less above the level of the ground or floor, except as otherwise required by Section 3314.9.4.

3314.8.1 Guardrail system.

Where required by Section 3314.8, the guardrail system for a scaffold shall meet the requirements of Section 3308.7.1 through 3308.7.7.

Exceptions: For the purposes of this section:

1. The term "floor" in Section 3308.7.1 through 3308.7.7 shall mean "platform."

2. The height of the toprail, as prescribed in Section 3308.7.2, may be as low as 38 inches (965 mm) in a guardrail system utilized in connection with a scaffold, and such toprail may deflect to a height of not less than 38 inches (965 mm) when designed in accordance with exception number 1 to Section 3308.7.3.

3. Alternate guardrail systems under exception number 1 to Section 3308.7.3 may be designed by the designer of the scaffold or the manufacturer of the scaffold to be capable of withstanding, without failure a force of at least:

3.1. For toprails or equivalent members, a force applied in any downward or horizontal direction at any point along its top edge of at least 100 pounds (445 N) for guardrail systems installed on single-point adjustable suspended scaffolds or two-point adjustable suspended scaffolds, and at least 200 pounds (890 N) for guardrail systems installed on all other scaffolds.

3.2. For midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent members, a force applied in any downward or horizontal direction at any point along the midrail or other member of at least 75 pounds (333 N) for guardrail systems with a minimum 100 pound (445 N) toprail capacity, and at least 150 pounds (666 N) for guardrail systems with a minimum 200 pound (890 N) toprail capacity.

3.3. For toeboards, a force of at least 50 pounds (222 N) applied in any downward or horizontal direction at any point along the toeboard.

4. Where intermediate supports, such as ballisters or additional rails are used, they shall not be more than 19 inches (483 mm) apart.

3314.8.2 Debris netting.

Where required by Section 3314.8, the scaffold shall be enclosed with a debris netting consisting of a wire screen comprised of not less than number 18 gauge wire mesh, or equivalent synthetic netting that is flame retardant in accordance with NFPA 701, with openings in the wire or synthetic mesh no larger than 1/2 inch (13 mm) in the vertical or horizontal dimensions and 3/4 inch (19 mm) in any other dimension. Such netting shall be securely attached to the scaffold and shall enclose all open sides, ends, and bottom of the scaffold for the full height of all platform levels where work is occurring. The effect of wind on the netting shall be accounted for in the design of the scaffold, where such design is required by Section 3314.3.

Exceptions:

1. Netting is not required to protect the bottom of the scaffold platform provided the netting is securely fastened to the scaffold deck and the scaffold platform planks are laid tight or the deck of the scaffold is solid.

2. Where netting is provided on the upper level of a supported scaffold, or when provided on a suspended scaffold, the netting need only extend to the height of the toprail.

3. Where the scaffold is installed as an alternative to sidewalk sheds, vertical nets, or adjoining property protection in accordance with Sections 3307, 3308, and 3309 respectively, the netting shall enclose the scaffold for its full height.

3314.9 Supported scaffold.

Supported scaffolds shall meet the requirements of Sections 3314.9.1 through 3314.9.4.

3314.9.1 Height-to-base ratio.

A supported scaffold with a height-to-base ratio (including outriggers supports, if used) of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing or equivalent means as follows:

1. Guys, ties, or braces shall be installed at locations where horizontal members support both inner and outer legs.

2. Guys, ties, or braces shall be installed in accordance with the design drawings required by Section 3314.3, or where design is not required, in accordance with the manufacturer's specifications. If design is not required and there are no manufacturer's specifications, the first guy, tie or brace shall be installed at a horizontal member and not more than a distance four times the least plan dimension from the base support and be repeated vertically at locations of horizontal members every 20 feet (6096 mm) or less thereafter for scaffolds 3 feet (914 mm) wide or less, and every 26 feet (7925 mm) or less thereafter for scaffolds greater than 3 feet (914 mm) wide. In every instance, the capacity of requirements of Section 3314.4.4.3 shall apply, which may necessitate guys, ties or braces being installed at smaller intervals.

3. The top guy, tie, or brace shall be placed no further than four times the least plan dimension from the top. Such guys, ties, or braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet (9144 mm) measured from one end (not both) towards each other.

4. Guys, ties, braces, or outriggers shall be used to prevent tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold.

3314.9.2 Foundation.

Supported scaffold poles, legs, posts, frames and uprights shall bear on base plates and mud sills or other adequate firm foundation to distribute the weight of the scaffold into the ground, structure, or sidewalk shed upon which it rests. Unstable objects shall not be used to support scaffolds or platform units.

3314.9.3 Plumb.

Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. The tolerance shall not exceed L/100, where L is the distance measured from the ground or grade elevation to the first cross brace or bottom of the first bearer or frame horizontal member.

3314.9.4 Supported scaffolds at the edge.

Supported scaffolds located on a floor, working deck, or roof and located within a distance from the edge of the roof or an unenclosed perimeter that is equal to or less than one and one-half times the height of the scaffold shall:

1. Be positively anchored or tie-backed, and with all wheels or rollers secured by rope, cable, or chocking at the wheels in order to prevent movement; and

2. Have all sides of the scaffold facing an unenclosed perimeter or the edge of a roof within a distance that is equal to or less than one and one-half times the height of the scaffold provided with guardrails and debris netting in accordance with Section 3314.8; or

3. Have all material and equipment susceptible to dislodgement, and not being actively held by a person, secured in a manner to prevent dislodgement by wind or accidental impact.

Exception: The above requirements shall not apply where vertical safety netting that meets the requirements of Section 3308.5, or an approved alternate system, extends to cover the full height and width of all unenclosed perimeters within a distance from the scaffold equal to or less than one and one-half times the height of the scaffold.

3314.10 Suspended scaffold.

Suspended scaffolds shall meet the requirements of Sections 3314.10.1 through 3314.10.14.

3314.10.1 Suspended elements to be kept vertical and parallel.

Suspended scaffolds shall be installed and used in such a manner that the ropes or similar suspension elements are vertical and/or in a plane parallel to the wall at all times.

Exception: Ropes or similar suspension elements do not have to be vertical and/or in a plane parallel to the wall provided such occurs in accordance with design drawings prepared by a registered design professional. Such design drawings shall be based on an investigation of the support surface/structure (e.g. roof, parapet) and anchorage of the scaffold conducted by such registered design professional. A signed, sealed, and dated report prepared by the registered design professional documenting such investigation shall accompany the design drawings.

3314.10.2 Support.

All suspended scaffold support devices, such as outrigger beams, C-hooks, parapet clamps, and similar devices shall be supported by surfaces/structure (e.g. roof, parapet) capable of supporting at least four times the load imposed on them by the scaffold operating at the rated load of the hoist. The support shall be inspected prior to installation in accordance with the requirements of Section 3314.4.3.1.

3314.10.3 Outrigger beam location.

Outrigger beams shall be placed perpendicular to the face of the building or structure.

Exception: Where a licensed rigger or registered design professional can demonstrate to the commissioner's satisfaction that it is not possible to place an outrigger beam perpendicular to the face of the building or structure, the outrigger beam may be placed at a different angle, provided opposing angle tiebacks are used.

3314.10.4 Outrigger beam stabilization.

The inboard ends of the suspended scaffold outrigger beam shall be stabilized by bolts or other direct connections to the floor or roof deck, or they shall have their inboard ends stabilized by counterweights.

Exception: Multipoint adjustable suspended scaffolds shall not be stabilized by counterweights.

3314.10.5 Outrigger beams secured by tiebacks.

Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks.

3314.10.6 Outrigger beam installation.

Outrigger beams shall be installed with all bearing supports perpendicular to the beam centerline and shall set and maintain the web in a vertical position. The shackle or clevis with which the rope is attached to the outrigger beam shall be placed directly over the centerline of the stirrup.

3314.10.7 Counterweight material.

Only those items specifically designed as counterweights shall be used to counterweight scaffold systems. Counterweights shall be made of a nonflowable material. Sand, gravel and similar materials that can be easily dislocated shall not be used. Construction materials such as, but not limited to, masonry units and rolls of roofing felt, shall not be used as counterweights.

3314.10.8 Counterweight securement.

Counterweights shall be secured by mechanical means to the outrigger to prevent accidental dislodgment.

3314.10.9 Counterweight removal.

Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled.

3314.10.10 Tiebacks.

Tiebacks shall be equivalent in strength to the suspension ropes. Tiebacks shall be secured to a structurally sound anchorage on the building or structure in accordance with Section 3314.6.

3314.10.11 Horizontal tieback location.

Horizontal tiebacks shall be installed perpendicular to the face of the building or structure, or opposing angle tiebacks shall be installed. Single tiebacks installed at an angle are prohibited.

3314.10.12 Support devices.

Suspended scaffold support devices, such as C-hooks, cornice hooks, roof hooks, roof irons, parapet clamps or other similar devices shall meet the following requirements:

1. Support devices shall be made of steel, wrought iron or materials of equivalent strength.

2. Such devices shall be supported by bearing blocks.

3. Support devices shall be secured against movement by tiebacks installed perpendicular to the face of the building or structure or by opposing angle tiebacks installed and secured to a structurally sound point of anchorage as prescribed in Section 3314.6.

4. Tieback rope shall be at least equal in strength to the suspension rope.

3314.10.13 Securing suspended scaffolds.

At the end of the shift, and when otherwise required by Section 3314.4.4.6, the suspended scaffold shall be cleared of all equipment and material susceptible to dislodgement and shall be lowered to the street, sidewalk shed, or other location specified in the design drawings required by Section 3314.3.3, or shall be secured to the roof, building, or other structure in accordance with the design drawings required by Section 3314.3.3.

3314.10.14 Stand-off brackets prohibited.

The installation or use of a stand-off bracket is prohibited.

3314.11 Suspension rope.

Suspension ropes on suspended scaffolds shall meet the requirements of Section 3314.11.1 through 3314.11.8.

3314.11.1 Wraps of rope.

When winding drum hoists are used on a suspended scaffold, they shall contain not fewer than four wraps of the suspension rope at the lowest point of scaffold travel. When other types of hoists are used, the suspension ropes shall be long enough to allow the scaffold to be lowered to the level below without the rope end passing through the hoist, or the rope end shall be configured or provided with means to prevent the end from passing through the hoist.

3314.11.2 Repaired rope.

The use of repaired wire rope as suspension rope is prohibited.

3314.11.3 Rope replacement.

Ropes shall be replaced or removed if any of the following conditions exist, and as otherwise prescribed by rule of the department:

1. Any physical damage that impairs the function and strength of the rope.

2. Presence of kinks that might impair the tracking or wrapping of the rope around the drums or sheaves.

3. Presence of abrasion, corrosion, scrubbing, flattening or peening causing the loss of more than one-third of the original diameter of the outside wires.

4. Heat damage caused by a torch or any damage caused by contact with electrical wires.

5. Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope.

3314.11.4 Shielding.

Suspension ropes shall be shielded from heat-producing processes.

3314.11.5 Corrosive substances.

When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against corrosive substances, or made of a material that will not be damaged by the corrosive substance being used.

3314.11.6 Suspended scaffold welding precautions for arcing prevention.

Precautions shall be taken to prevent the possibility of arcing through the suspension wire rope during welding operations.

3314.11.6.1 Insulated thimble.

An insulated thimble shall be used to attach each suspension wire rope to its hanging support. Excessive suspension wire rope and any additional independent lines from grounding shall be insulated.

3314.11.6.2 Insulating material.

The suspension wire rope shall be covered with insulating material extending at least 4 feet (1219 mm) above the hoist. If there is a tail line below the hoist, it shall be insulated to prevent contact with the platform. The portion of the tail line that hangs free below the scaffold shall be guided or retained or both so that it does not become grounded.

3314.11.6.3 Protective covers.

Each hoist shall be covered with insulated protective covers.

3314.11.6.4 Grounding conductor.

In addition to a work lead attachment required by the welding process, a grounding conductor shall be connected from the scaffold to the structure. The size of the connector shall be at least the size of the welding process work lead, and this conductor shall not be in series with the welding process or the work piece.

3314.11.6.5 Disconnected grounding lead.

If the scaffold grounding lead is disconnected at any time, the welding machine shall be shut off or the welding lead shall be removed from the scaffold.

3314.11.6.6 Welding rod or lead.

An active welding rod or uninsulated welding lead shall not be allowed to make contact with the scaffold or its suspension system.

3314.11.7 Wire rope clips.

Wire rope clips used on suspended scaffolds shall be in accordance with Sections 3114.11.7.1 through 3314.11.7.4.

3314.11.7.1 Minimum number of clips to be installed.

Where wire clips are used on suspended scaffolds, there shall be a minimum of three wire rope clips installed a minimum of six rope diameters apart.

3314.11.7.2 Installed to manufacturer specifications.

The clips shall be installed according to the manufacturer's specifications.

3314.11.7.3 Retightening of clips.

The clips shall be retightened to the manufacturer's specifications after initial loading. Clips shall be inspected and retightened to the manufacturer's specifications at the start of each work shift thereafter.

3314.11.7.4 U-bolt clips.

When U-bolt clips are used, the U-bolt shall be placed over the dead end of the rope and the saddle shall be placed over the live end of the rope.

Exception: U-bolt clips shall not be used at the point of suspension.

3314.11.8 Swaged attachments or spliced eyes.

Swaged attachments or spliced eyes on wire suspension ropes shall not be used unless they are made by the wire rope manufacturer or a qualified person. Where swaged attachments or spliced eyes are made by a qualified person, a representative sample of the assembly shall be tested under the supervision of a licensed rigger or a registered design professional to confirm the assembly will supply the clamping force specified by the wire rope manufacturer or the manufacturer of the hardware. Swaged attachments or spliced eyes shall be provided with a tag by the wire rope manufacturer or the testing entity indicating the capacity of the assembly.

Exception: J-bolts shall be designed by a manufacturer and installed in accordance with the manufacturer's specifications.

3314.12 Wood pole scaffolds.

Wood pole scaffolds shall meet the requirements of Sections 3314.12.1 through 3314.12.9.

3314.12.1 Standard designs.

All wood pole scaffolds 40 feet (12 192 mm) high or less shall be constructed in accordance with the minimum nominal sizes and maximum spacings shown in Tables 3314.12.1(1) through 3314.12.1(6). Wood pole scaffolds more than 40 feet (12 192 mm) high shall be designed in accordance with Section 3314.3.

Table 3314.12.1(1) Minimum Size and Maximum Spacing of Members of Single Wood Pole Light Duty Scaffolds.

Uniformly Distributed Load Not to Exceed 25 psf 
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			
																				Max. height of scaffold (ft)
																			
																		
																	
																
															
															
																
																	
																		
																			
																				20' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				40' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				60' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				75' 
																			
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min.)
																
															
															
																
																	
																		2" x 4" 
																	
																
															
															
																
																	
																		3" x 4" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		Top 60' 4" x 4"
																	
																
															
															
																
																	
																		Lower Sect. 4" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9"
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal)
																
															
															
																
																	
																		
																			10' - 0" 
																		
																	
																
															
														
														
															
																
																	Max. width of scaffold
																
															
															
																
																	
																		
																			 5' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers or putlogs (min.) 
																
															
															
																
																	
																		
																			3" x 4" or 2" x 6" (on edge) 
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum):
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		With 6'-0" pole space
																	
																
															
															
																
																	
																		
																			1" x 6" (on edge) 
																		
																	
																
															
														
														
															
																
																	
																		With 10'-0" pole space
																	
																
															
															
																
																	
																		
																			1 1/4" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			7' - 0" 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			1" x 4" 
																		
																	
																
															
														
														
															
																
																	Tie-ins
																
															
															
																
																	
																		
																			1" x 4" 
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 4" 
																		
																	
																
															
														
														
															
																
																	Planking:
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		Not more than 6' span
																	
																
															
															
																
																	
																		
																			1 1/4" x 9" 
																		
																	
																
															
														
														
															
																
																	
																		Up to 10' span
																	
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(2) Minimum Size and Maximum Spacing of Members of Single Wood Pole Medium Duty Scaffolds

Uniformly Distributed Load Not to Exceed 50 psf 
																				
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Max. height of scaffold (ft)
																		
																	
																
															
															
																
																	
																		
																			
																				20' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				40' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				60' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				75' 
																			
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min)
																
															
															
																
																	
																		3" x 4" or 2" x 6" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		 4" x 6" 
																	
																
															
															
																
																	
																		Top 60' 4" x 6"
																	
																
															
															
																
																	
																		Lower Sect. 4" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal)
																
															
															
																
																	
																		
																			8' - 0" 
																		
																	
																
															
														
														
															
																
																	Max. width of scaffold
																
															
															
																
																	
																		
																			5' - 0" 
																		
																	
																
															
															
																
																	
																		
																			8' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers or putlogs (min.) 
																
															
															
																
																	
																		
																			3" x 4" or 2" x 6" (on edge) 
																		
																	
																
															
															
																
																	
																		
																			3" x 5" or 2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Max. spacing of bearers or putlogs
																
															
															
																
																	
																		
																			8' - 0" 
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			7' - 0" 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			1" x 6" or 1 1/4" x 4" 
																		
																	
																
															
														
														
															
																
																	Tie-ins
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Planking:
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		 Not more than 6' span 
																	
																
															
															
																
																	
																		
																			1 1/4" x 9 1/4" 
																		
																	
																
															
														
														
															
																
																	
																		 Up to 8' span
																	
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																		
																	
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(3) Minimum Size and Maximum Spacing of Members of Single Wood Pole Heavy Duty Scaffolds.

Uniformly Distributed Load Not to Exceed 75 psf 
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Max. height of scaffold (ft)
																		
																	
																
															
															
																
																	
																		
																			
																				20' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				40' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				60' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				75' 
																			
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min)
																
															
															
																
																	
																		3" x 4" or 2" x 6" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		 4" x 6" 
																	
																
															
															
																
																	
																		Top 60' 4" x 6"
																	
																
															
															
																
																	
																		Lower Sect. 6" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal)
																
															
															
																
																	
																		
																			6' - 0" 
																		
																	
																
															
														
														
															
																
																	Max. width of scaffold
																
															
															
																
																	
																		
																			5' - 0" 
																		
																	
																
															
															
																
																	
																		
																			8' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers or putlogs (min.) 
																
															
															
																
																	
																		
																			3" x 5" 
																		
																	
																
															
															
																
																	
																		
																			3" x 6" or 2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. spacing of bearers or putlogs
																
															
															
																
																	
																		
																			6' - 0" 
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			7' - 0" 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			2" x 4" 
																		
																	
																
															
														
														
															
																
																	Tie-ins
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Planking
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(4) Minimum Size and Maximum Spacing of Members of Independent Wood Pole Light Duty Scaffolds

Uniformly Distributed Load Not to Exceed 25 psf 
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Max. height of scaffold (ft)
																		
																	
																
															
															
																
																	
																		
																			
																				20' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				40' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				60' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				75' 
																			
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min)
																
															
															
																
																	
																		2" x 4" 
																	
																
															
															
																
																	
																		3" x 4" or 2" x 6" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		Top 60' 4" x 6"
																	
																
															
															
																
																	
																		Lower Sect. 6" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal):
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		With 1 1/4" x 9" ledgers
																	
																
															
															
																
																	
																		
																			6' - 0" 
																		
																	
																
															
														
														
															
																
																	
																		With 2" x 9" ledgers
																	
																
															
															
																
																	
																		
																			10' - 0" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (transverse)
																
															
															
																
																	
																		
																			10 - 0" 
																				
																				a
																				
																				 
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum)
																
															
															
																
																	
																		
																			1 1/4" x 9" (on edge) or 2" x 9"
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			7' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers (minimum)
																
															
															
																
																	
																		
																			1 1/4" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			1" x 4" 
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 4" 
																		
																	
																
															
														
														
															
																
																	Planking:
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		Not more than 6' span 
																	
																
															
															
																
																	
																		
																			1 1/4" x 9 1/4"
																		
																	
																
															
														
														
															
																
																	
																		Up to 8' span
																	
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(4):

a Total base dimension in both directions to be at least 25 percent of height.

Table 3314.12.1(5) Minimum Size and Maximum Spacing Members of Independent Wood Pole Medium Duty Scaffolds

Uniformly Distributed Load Not to Exceed 50 psf 
																		
																	
																
															
														
														
															
																
																	Max. height of scaffold (ft)
																
															
															
																
																	
																		20' 
																	
																
															
															
																
																	
																		40' 
																	
																
															
															
																
																	
																		60' 
																	
																
															
															
																
																	
																		
																			75' 
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min)
																
															
															
																
																	
																		3" x 4" or 2" x 6" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		 4" x 6" 
																	
																
															
															
																
																	
																		Top 60' 14" x 6"
																	
																
															
															
																
																	
																		Lower Sect. 6" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal)
																
															
															
																
																	
																		
																			8' - 0" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (transverse)
																
															
															
																
																	
																		
																			10' - 0" 
																				
																				a
																				
																				
																			
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			6' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			1 1/4" x 4" or 1" x 6" 
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Planking:
																
															
															
																
																	
																		
																			
																			
																		
																	
																
															
														
														
															
																
																	
																		Not more than 6' span 
																	
																
															
															
																
																	
																		
																			1 1/4" x 9 1/4"
																		
																	
																
															
														
														
															
																
																	
																		Up to 6' span
																	
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(5):

a Total base dimension in both directions to be at least 25 percent of height.

Table 3314.12.1(6) Minimum Size and Maximum Spacing of Members of Independent Wood Pole Heavy Duty Scaffolds

Uniformly Distributed Load Not to Exceed 75 psf 
																				
																			
																		
																	
																
															
														
														
															
																
																	
																		
																			Max. height of scaffold (ft)
																		
																	
																
															
															
																
																	
																		
																			
																				20' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				40' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				60' 
																			
																		
																	
																
															
															
																
																	
																		
																			
																				75' 
																			
																		
																	
																
															
														
														
															
																
																	Poles or uprights (min)
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		4" x 4" 
																	
																
															
															
																
																	
																		 4" x 6" 
																	
																
															
															
																
																	
																		Top 60' 4" x 6"
																	
																
															
															
																
																	
																		Lower Sect. 6" x 6"
																	
																
															
														
														
															
																
																	Pole foundation (min.)
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (longitudinal)
																
															
															
																
																	
																		
																			6' - 0" 
																				
																				a
																				
																				 
																		
																	
																
															
														
														
															
																
																	Max. pole spacing (transverse)
																
															
															
																
																	
																		
																			10' - 0" 
																				
																				a
																				
																				 
																		
																	
																
															
														
														
															
																
																	Ledgers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Vertical spacing of ledgers (max.)
																
															
															
																
																	
																		
																			5' - 0" 
																		
																	
																
															
														
														
															
																
																	Bearers (minimum)
																
															
															
																
																	
																		
																			2" x 9" (on edge) 
																		
																	
																
															
														
														
															
																
																	Non-supporting stringers
																
															
															
																
																	
																		
																			1 1/4" x 9 1/4"
																		
																	
																
															
														
														
															
																
																	Bracing
																
															
															
																
																	
																		
																			1" x 6" 
																		
																	
																
															
														
														
															
																
																	Planking
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Toeboards
																
															
															
																
																	
																		
																			2" x 9" 
																		
																	
																
															
														
														
															
																
																	Guard rails
																
															
															
																
																	
																		
																			2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(6):

a Total base dimension in both directions to be at least 25 percent of height.

3314.12.2 Erection and removal.

When a new working level is desired, the existing planks shall be left undisturbed until the new working level is framed. As the platform level is abandoned with the progress of the work, all members other than the planking, railing and toeboards shall be left intact. When removing a scaffold, the sequence of removing the members shall be the reverse of that used in erection.

3314.12.3 Materials and construction for wood pole scaffolds.

Wood pole scaffold materials and construction shall comply with the following requirements:

1. All lumber used in wood pole scaffolds or their supports shall be at least equal in strength and quality to construction grade lumber in accordance with Section 2301.

2. All lumber and timber shall be fastened at the various joints with sufficient nails or bolts of a suitable size to produce a secure joint capable of withstanding the design load. Table 3314.12.3 provides minimum requirements for size and number of nails. All nails shall be driven full length.

3. Any other suitable material, or dimensions other than those indicated, may be used for wood pole scaffold construction provided it is at least equivalent in strength and suitability to the comparable wood scaffold it is designed to replace, and approval of the commissioner has been obtained.

Table 3314.12.3 Size and Number of Nails Required for Scaffold Construction

Thickness of Smaller Member (in.)
																			
																		
																	
																
															
															
																
																	
																		
																			
																				Trade Size of Nail
																			
																		
																	
																
															
															
																
																	
																		
																			
																				Length of Nail (in.)
																			
																		
																	
																
															
														
														
															
																
																	
																		1 
																	
																
															
															
																
																	
																		8d 
																	
																
															
															
																
																	
																		2 1/2
																	
																
															
														
														
															
																
																	
																		2 
																	
																
															
															
																
																	
																		20d 
																	
																
															
															
																
																	
																		4 
																	
																
															
														
														
															
																
																	
																		3 
																	
																
															
															
																
																	
																		60d 
																	
																
															
															
																
																	
																		6 
																	
																
															
														
														
															
																
																	
																		4 
																	
																
															
															
																
																	
																		— 
																	
																
															
															
																
																	
																		8

Width of Smaller Member (in.)
																			
																		
																	
																
															
															
																
																	
																		
																			
																				Minimum Number of Nails Required
																			
																		
																	
																
															
														
														
															
																
																	
																		4 
																	
																
															
															
																
																	
																		2 
																	
																
															
														
														
															
																
																	
																		6 
																	
																
															
															
																
																	
																		3 
																	
																
															
														
														
															
																
																	
																		8 
																	
																
															
															
																
																	
																		4 
																	
																
															
														
														
															
																
																	
																		10 
																	
																
															
															
																
																	
																		5 
																	
																
															
														
														
															
																
																	
																		12 
																	
																
															
															
																
																	
																		5

3314.12.4 Poles.

Wooden scaffold poles shall be plumb and the foot ends shall be secured against lateral movement. Where wood poles are spliced, the squared end of the upper section shall bear uniformly on the squared end of the lower section and the two ends shall be rigidly fastened together with two or more wood splice plates, each at least 4 feet (1219 mm) in length. The plates shall be placed at right angles to each other, shall overlap the abutting ends of the pole equally, and shall have a combined sectional area not less than 50 percent of the cross sectional area of the pole. Splicing of adjacent poles shall be staggered. Splices shall be close to ledgers, but so located as not to interfere with the fastenings.

3314.12.5 Bracing.

Wood pole scaffolds shall be braced and stayed to prevent movement away from the building. Diagonal or equivalent bracing shall be provided to prevent the poles from moving in a direction parallel to the building face and shall be so installed that every spliced section of every pole is braced to adjacent poles.

3314.12.6 Planking.

Planking shall comply with Items 1 through 3.

1. Where planks are butted end to end, parallel putlogs or bearers shall be provided not more than 8 inches (203 mm) apart so that the butted ends rest on separate putlogs or bearers. Ends shall be nailed or cleated.

2. Where platform planks are used with overlapping ends, the ends of both the upper and lower planks shall overlap the putlog or bearer by at least 6 inches (152 mm).

3. Planks shall be laid close together and shall be of sufficient length to extend over three bearers.

3314.12.7 Connections.

Ledgers shall not be spliced between poles but shall overlap the poles at each end by at least 4 inches (102 mm). Where ledgers lap each other, bearing-blocks attached to the pole shall be provided to support the ledger.

3314.12.7.1 Braces.

The ends of all wooden braces shall overlap the nailed fastenings by an amount sufficient to prevent the ends of the braces from splitting.

3314.12.8 Putlogs for single pole scaffolds.

All putlogs shall be set with the greater dimension vertical and shall be long enough to project beyond the outer edge of the poles by at least 12 inches (305 mm). Putlogs shall be supported on the ledger and located against the side of the poles and fastened to either the pole or the ledger. The other end of the putlog shall rest in the wall of the building, with at least a 4 inch (102 mm) bearing, and shall not be notched or cut down, except for light duty scaffolds, which may be notched or cut down to fit into a space made by the removal of a brick. In such cases, the notch shall be made on the top of the putlog just deep enough to permit it to be inserted in the hole in the wall.

3314.12.9 Bearers for independent pole scaffolds.

Bearers shall be set with their greater dimensions vertical, and shall be long enough to project over the ledgers beyond the outer row of poles by at least 12 inches (305 mm) and beyond the inner row of poles by at least 2 inches (51 mm). Bearers shall be supported on the ledgers, located against the sides of the poles and fastened to the ledgers.

3314.13 Fabricated frame scaffolds.

Fabricated frame scaffolds shall meet the requirements of Sections 3314.13.1 through 3314.13.3.

3314.13.1 Bracing.

Frames and panels shall be braced by cross, horizontal or diagonal braces or a combination thereof, which secure vertical members together laterally.

3314.13.2 Vertical joining.

Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Where uplift can occur, the frames or panels shall be locked together vertically by pins or equivalent means.

3314.13.3 Frame scaffold brackets.

Brackets used to support cantilevered loads shall be seated with side-brackets parallel to the frame and end-brackets at 90 degrees (1.57 rad) to the frames shall not be bent or twisted from these positions and shall be used only to support light duty loads of up to 25 pounds per square foot (122.05 kg/m
													
													
													
													2
													
													
													
													), unless the design provisions of Section 3314.3 have been met.

3314.14 Outrigger scaffolds (thrust out).

Outrigger scaffolds (thrust out) shall not be used for loading in excess of 50 pounds per square foot (244.1 kg/m
													
													
													
													2
													
													
													
													) (medium duty).

3314.14.1 Outrigger beams.

The fulcrum point of the beam shall rest on a secure bearing at least 6 inches (152 mm) in each horizontal dimension. The beam shall be secured against movement and shall be securely braced against tipping at both the fulcrum point and the inboard end.

3314.14.2 Inboard supports.

The inboard ends of outrigger beams shall be securely fixed to resist all vertical, horizontal and torsional forces. Pull-out tests for adhesive and expansions anchors, if used, shall be approved by the commissioner.

3314.15 Two-point adjustable suspended scaffolds.

Two-point adjustable suspended scaffolds shall meet the requirements of Sections 3314.15.1 through 3314.15.7.

3314.15.1 Width and support.

Two-point adjustable suspended platforms shall be at least 20 inches (508 mm) but not more than 36 inches (914 mm) in width unless designed by a registered design professional. Each end of the platform shall be supported by a stirrup or hanger that meets the requirements of Section 3314.15.2, and the platform shall be securely fastened thereto. Not more than two hangers or stirrups shall be used to support one scaffold.

3314.15.2 Hangers or stirrups.

Hangers or stirrups shall be of steel or wrought iron. Each such hanger shall be formed to properly fit the platform and the hoist mechanism. The hanger or stirrup shall be placed at least 6 inches (152 mm) but not more than 18 inches (457 mm) from the end of the platform.

Exception: Alternative spacing from the end of the platform may be utilized where the manufacturer so specifies and such alternative spacing is indicated on design drawings developed by a registered design professional.

3314.15.3 Fiber suspension rope.

The use of fiber rope shall be limited to light duty two-point adjustable suspended scaffolds. Fiber rope shall be at least equivalent in strength and suitability to 3/4-inch (19 mm) grade #1 unspliced manila rope.

3314.15.3.1 Corrosive substances.

Fiber rope susceptible to damage from corrosive substances shall not be permitted for or near any work involving the use of corrosive substances.

3314.15.3.2 Upper block.

Fiber rope shall not be used where the upper block is more than 100 feet (30 480 mm) or ten stories, whichever is less, above the ground or roof setback.

3314.15.3.3 Fit.

All blocks shall fit the size of rope they carry, and shall be constructed so as not to chafe the rope.

3314.15.4 Combination.

Two or more two-point adjustable suspended scaffolds shall not be combined into one by bridging the distance between them or by any other form of connection.

3314.15.5 Number of workers.

Not more than two people shall be permitted on one scaffold at one time except where the scaffold is designed to hold more. Written permission from the commissioner shall be required for more than two people on the scaffold.

3314.15.6 Device to raise, lower, and hold the scaffold.

Every two-point adjustable suspended scaffold shall be equipped with a device to raise, lower or hold the scaffold in position.

3314.15.7 Platforms.

The platforms of every two-point adjustable suspended scaffold shall be ladder-type, plank-type, beam-type, light-metal type, or another type acceptable to the commissioner.

3314.16 Corner and angle scaffolds.

Corner and angle scaffolds shall comply with the requirements of Sections 3314.16.1 through 3314.16.4.

3314.16.1 Motors.

As many motors as needed shall be provided to maintain the stability of the platform under all operating conditions.

3314.16.2 Maximum number of people.

The number of people allowed on a corner or angle scaffold shall not be more than the number of motors required to keep the scaffold stable, unless otherwise designed by a registered design professional.

3314.16.3 Additional information.

In addition to the information required by Section 3314.3, corner and angle scaffolds shall also contain load capacity and distribution charts and a certification from the registered design professional that he/she has reviewed the manufacturer's design calculations and testing or prepared sufficient calculations of his/her own and found them to conform to this code.

3314.16.4 Inspection.

The equipment setting for corner and angle scaffolds shall be inspected by the department prior to its use. Additional inspection by the department shall be required each time the equipment is moved to a different position.

3314.17 Multiple-point adjustable suspended scaffolds.

Multiple-point adjustable suspended scaffolds shall comply with the following:

1. All multiple-point adjustable suspended scaffolds shall be supported by wire ropes. The use of fiber ropes is not permitted;

2. Provision shall be made to prevent supports from slipping off the ends of outrigger beams;

3. Platform bearers shall be of metal; and

4. During raising or lowering, the levels of the various sections of the scaffolds shall be kept uniform and the differential height between sections shall be minimized.

3314.18 Manually propelled, free-standing scaffolds.

All manually propelled free-standing scaffolds shall meet the following requirements:

1. Work platforms shall be tightly planked for the full width of the scaffold, except for necessary entrance openings. Planks shall be secured in place;

2. Platforms shall have a guardrail system;

3. Where a ladder is used to approach a platform, the ladder shall be secured to the scaffold;

4. Handholds shall be provided for safe passage from the ladder to the platform;

5. Unless temporarily braced to an adjacent structure, the ratio of the platform height to the least base dimension shall be such as to ensure stability, but in no case shall such height be more than four times the least base dimension;

6. Provisions shall be made to prevent the scaffold from falling during movement from one location to another;

7. While the scaffold is in use, it shall rest upon a stable footing and shall stand plumb. The casters or wheels shall be locked in position; and

8. While the scaffold is being moved, no person shall be permitted to ride on it, and all tools, equipment and material shall be removed.

3314.19 Mast climbers.

Mast climbers shall be designed, constructed, permitted, installed, adjusted, maintained, repaired, used, operated, inspected, and removed in accordance with rules promulgated by the commissioner.

3314.20 Public housing construction projects: sidewalk sheds.*

No sidewalk shed permit issued for construction projects on public housing developments provided by the New York city housing authority shall be renewed unless the commissioner determines that such sidewalk shed is being used as part of an ongoing construction project. Provided, however, that if removal of the sidewalk shed shall expose the public to potential harm, the commissioner shall issue a one-time renewal of such permit for a one-year period. The commissioner shall promulgate such rules and regulations as shall be necessary to implement the provisions of this section.

An "ongoing construction project" shall mean any construction project during which persons employed in construction work are utilizing such sidewalk shed at least two days per week, or have utilized such sidewalk shed for at least two days per week at any time over the course of the six months immediately preceding a request to renew a sidewalk shed permit.

(2015 N.Y. Laws Ch. 520, 12/11/2015, eff. 1/10/2016; Am. 2016 N.Y. Laws Ch. 18, 3/21/2016, retro eff. 1/10/2016)

Where this section sits in the code

New York City Administrative Code
Title 28
Chapter 7: New York City Building Code

3314.1 Scope.

Exceptions:

2. Mast climbers are only required to comply with the requirements of Section 3314.19.

3314.1.1 Height.

3314.2 Permit.

Exceptions:

1. A permit is not required for a two-point, single tier, suspended scaffold suspended from a parapet using C-hooks.

2. A permit is not required for a suspended scaffold provided Items 2.1 through 2.3 are complied with:

2.1. The scaffold is installed and used in conjunction with a construction, alteration, or demolition project that holds a valid permit from the department for such project;

2.2. The site is closed to the public and enclosed with a fence in accordance with Section 3307.7; and

2.3. The installation, use, and removal of the scaffold is confined within the site or over an area protected by sidewalk sheds or roof protection.

3. A permit is not required for a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm

) or less in size.

4. A permit is not required for a supported scaffold, provided Items 4.1 through 4.6 are complied with:

4.1. The scaffold is not an outrigger scaffold (thrust out);

4.2. No hoisting equipment with a manufacturer's rated capacity greater than 2,000 pounds (907kg) will be located on the scaffold;

4.3. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m

) (e.g. a light duty scaffold, a medium duty scaffold, or a heavy duty scaffold);

4.4. The scaffold is less than 40 feet (12 192 mm) in height;

4.5. Side-arm or end-arm scaffold brackets are used exclusively for the support of workers; and

4.6. Where the scaffold has a height-to-base ratio (including outriggers supports, if used) of more than four to one (4:1), it is restrained in accordance with Section 3314.9.1.

3314.3 Design.

3314.3.1 Supported scaffolds and outrigger scaffolds (thrust out).

Exception: Design is not required for a supported scaffold, provided Items 1 through 6 are complied with:

1. The scaffold is not an outrigger scaffold (thrust out);

2. No hoisting equipment with a manufacturer's rated capacity greater than 2,000 pounds (907kg) will be located on the scaffold;

3. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m

) (e.g. a light duty scaffold, a medium duty scaffold, or a heavy duty scaffold);

4. The scaffold is less than 40 feet (12 192 mm) in height;

5. Side-arm or end-arm scaffold brackets are used exclusively for the support of workers; and

6. Where the scaffold has a height-to-base ratio (including outriggers supports, if used) of more than four to one (4:1), it is restrained in accordance with Section 3314.9.1.

3314.3.2 Suspended scaffolds.

Suspended scaffolds shall be designed by a registered design professional.

Exceptions:

1. Design is not required for a single tier non-adjustable suspended scaffold whose platform is 40 square feet (3720 mm

) or less in size.

2.1. The scaffold or scaffold outrigger beam or suspension member support structure is not anchored to the building or structure, other than tiebacks; and

2.2. The scaffold will not be loaded, or designed to be loaded, in excess of 75 pounds per square foot (366.15 kg/m

); and either

2.2.1. The scaffold utilizes c-hooks; or

2.2.2. The distance from floor or roof on which the support structure is located to the top of the outrigger beam or suspension member support structure is less than 15 feet.

3314.3.3 Drawings.

Where design is required by this section, the drawings shall be specific to the site and shall, at a minimum, include a plan view and an elevation view, with full dimensions, detailing:

1. The scaffold and location of the scaffold;

2. The base structure (e.g. roof and parapet, sidewalk shed);

3. Connections and attachments to the base structure, including but not limited to anchorages, fastenings, tie-ins, tie-backs, and lifelines;

4. Any temporary or permanent structural modifications required to the base structure;

6. Any hoisting equipment located on the scaffold;

7. Platform levels, support centers, and offsets, along with the maximum number of levels to be loaded simultaneously and the maximum loads to be imposed;

11. For a supported scaffold, structural members, as well as the founding of the scaffold, including but not limited to sidewalk sheds, floors, roofs, or ground;

12. References to related job numbers (e.g. the sidewalk shed upon which the scaffold rests, the underlying permit for facade or construction work); and

13. Where anchors are utilized:

13.1. Type of anchor and manufacturer of anchor;

13.2. Procedures for the installation, maintenance, and use of the anchor as specified by the manufacturer of the anchor; and

3314.3.4 Loads imposed.

3314.4 Installation, inspection, repair, maintenance, adjustment, use, and removal of scaffolds.

3314.4.1 Installation and removal.

3314.4.1.1 Supervision of suspended scaffold installation and removal.

Suspended scaffolds shall be installed and removed by or under the direct and continuing supervision of a licensed rigger.

Exceptions: In lieu of direct and continuing supervision by a licensed rigger:

1. The installation and removal of a suspended scaffold utilized exclusively for sign hanging work may be performed by or under the direct and continuing supervision of a licensed sign hanger.

2.1. The construction of a new building;

2.2. The full demolition of an existing building;

2.3. The vertical or horizontal enlargement of an existing building; or

2.4. The alteration, maintenance, or repair of a facade of a major building where a site safety plan is required by Section 3310.3.

3314.4.1.2 Supervision of supported scaffold installation and removal.

The installation and removal of a supported scaffold shall be supervised by a competent person designated by the contractor installing or removing the scaffold.

3314.4.1.3 Supervisor to be present at the site.

3314.4.1.4 Training.

3314.4.1.5 Notification of adjustable suspended scaffold installation and removal.

1. Where the installation or removal occurs under the direct and continuing supervision of a licensed rigger or sign hanger, shall be made by such licensee; or

2. Where the installation or removal does not occur under the direct and continuing supervision of a licensed rigger or sign hanger, shall be made by the designer of the scaffold.

3314.4.2 Use of scaffolds.

Scaffolds shall be used in accordance with the requirements of Sections 3314.4.2.1 through 3314.4.2.5.

3314.4.2.1 Supervision of suspended scaffold use.

Suspended scaffolds shall be used by or under the direct and continuing supervision of a licensed rigger.

Exceptions:

2.1. The construction of a new building;

2.2. The full demolition of an existing building;

2.3. The vertical or horizontal enlargement of an existing building; or

2.4. The alteration, maintenance, or repair of a facade of a major building where a site safety plan is required by Section 3310.3.

3.1. Does not perform construction, maintenance, repair, or demolition work from the scaffold;

3.2. Does not operate the scaffold; and

3.3. Is familiar with the use of the scaffold, safety equipment, and emergency procedures.

4.1. The work requires a specialty trade, including but not limited to work with hazardous materials or chemicals;

4.2. The crew is in accordance with rules promulgated by the commissioner; and

4.3. The members of the crew are approved by the commissioner.

3314.4.2.2 Supervision of supported scaffold use.

The use of a supported scaffold shall be supervised by a competent person designated by the scaffold controlling entity.

3314.4.2.3 Installer who is not the scaffold controlling entity.

Where the contractor or licensee that installed the scaffold is not the scaffold controlling entity, the installer shall have no supervisory responsibility for the use of the scaffold.

3314.4.2.4 Supervisor to be present at the site.

3314.4.2.5 Training.

All individuals using a supported scaffold or an adjustable suspended scaffold, including the person supervising such use, shall have been trained as required by Section 3314.4.5.

3314.4.3 Inspections.

Scaffolds shall be inspected in accordance with the requirements of Sections 3314.4.3.1 through 3314.4.3.6.

3314.4.3.1 Inspection prior to the installation of a suspended scaffold.

1. Where the installation or removal occurs under the direct and continuing supervision of a licensed rigger or sign hanger, be designated by such licensee; or

2. Where the installation or removal does not occur under the direct and continuing supervision of a licensed rigger or sign hanger, be designated by the designer of the scaffold.

Exception: An inspection is not required for a nonadjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.1.1 Special provision for parapet clamps.

3314.4.3.1.2 Documentation of parapet clamp inspection and evaluation.

3314.4.3.2 Installation inspection for suspended scaffolds.

1. Where the scaffold was designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger:

1.1. The licensee; or

1.2. A suspended scaffold foreman; or

2. Where the scaffold was not designed by a licensed rigger or sign hanger, or installed by or under the direct and continuing supervision of a licensed rigger or sign hanger:

2.1. The scaffold designer;

2.2. An employee of the scaffold designer under his or her direct supervision;

2.3. A registered design professional retained by the scaffold designer; or

2.4. An employee of such retained registered design professional under the direct supervision of such retained registered design professional.

Exceptions: An installation inspection is not required for:

1. A non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed; or

3314.4.3.2.1 Installation inspection report.

Exception: An installation inspection report is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.3 Installation inspection for supported scaffolds.

Exceptions:

2. An inspection and report is not required for a supported scaffold that, pursuant to Section 3314.3.1, is not required to be designed.

3314.4.3.4 Pre-shift inspection for a suspended scaffold.

Exception: A pre-shift inspection is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.4.1 Responsibility for performing the inspection and signing the checklist.

3314.4.3.4.2 Pre-shift inspection checklist contents.

Exception: A pre-shift inspection checklist is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.3.5 Pre-shift inspection for a supported scaffold.

Exception: An inspection report is not required for a supported scaffold that is not required to be designed under Section 3314.3.1.

3314.4.3.6 Inspection following a site repair or adjustment.

Exceptions:

1. The scaffold may be used prior to the inspection where authorized in accordance with Section 3314.4.4.7.

2. An inspection and report is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.4.4 Safeguards.

The safeguards required by Sections 3314.4.4.1 through 3314.4.4.12 shall be observed at all times.

3314.4.4.1 Safe working order.

3314.4.4.2 Loads.

3314.4.4.3 Capacity.

Scaffolds shall meet the following capacity requirements.

3314.4.4.3.1 Scaffold and components.

3314.4.4.3.2 Suspension rope on nonadjustable suspended scaffolds.

3314.4.4.3.3 Suspension rope on adjustable suspended scaffolds.

3314.4.4.3.4 Direct connections to roofs, floors, and counterweights.

3314.4.4.4 Stable and secure.

3314.4.4.5 Dislodgement.

Material and equipment susceptible to dislodgment shall not be stored on a scaffold while work is not being performed.

3314.4.4.6 Winds.

3314.4.4.7 Use during installation, repairs, maintenance, adjustments, or removal.

3314.4.4.8 Non-combustible construction.

With the exception of the planking, the following scaffolds shall be constructed of non-combustible materials:

1. Exterior scaffolds exceeding 75 feet (22 860 mm) in height.

2. Interior scaffolds exceeding 21 feet (6401 mm) in height.

3. All scaffolds used in the alteration, repair, or partial demolition of buildings in Occupancy Groups I-1 to I-4.

3314.4.4.9 Capacity identification for suspended scaffolds.

3314.4.4.10 Prohibition on shore or lean-to scaffolds.

The use of shore or lean-to scaffolds is prohibited.

3314.4.4.11 Accumulation of debris.

Debris shall not be allowed to accumulate on platforms.

3314.4.4.12 Precautions while working around powerlines.

Table 3314.4.4.12 Minimum Distances from Power Lines

Insulated Lines

Voltage

Minimum Distance

Alternatives

Less than 300 volts

3 feet (914 mm)

Two times the length of the line insulator, but never less than 10 feet (3048 mm)

300 volts to 50 kilovolts

10 feet (3048 mm)

More than 50 kilovolts

10 feet (3048 mm) plus 0.4 inches (10 mm) for each 1 kilovolt over 50 kilovolts

Uninsulated Lines

Voltage

Minimum Distance

Alternatives

Less than 50 kilovolts

10 feet (3.1 m)

Two times the length of the line insulator, but never less than 10 feet (3048 mm)

More than 50 kilovolts

10 feet (3048 mm) plus 0.4 inches (10 mm) for each 1 kilovolt over 50 kilovolts

3314.4.5 Training.

3314.4.5.1 Training for supported scaffold installers, adjusters, repairers, maintainers, or removers.

Exceptions:

3314.4.5.2 Training for supported scaffold users.

Exceptions:

3314.4.5.3 Training for suspended scaffold supervisors.

Exception: Individuals supervising the installation, adjustment, modification, repair, use, or removal of a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm

) or less in size.

3314.4.5.4 Training for suspended scaffold installers, adjusters, repairers, maintainers, users, or removers.

Exceptions:

2. Individuals who install, adjust, repair, maintain, use, or remove a single tier nonadjustable suspended scaffold whose platform is 40 square feet (3720 mm

) or less in size.

3314.4.5.5 Course providers.

3314.4.5.6 Course curriculums.

3314.4.5.7 Evaluation.

3314.4.5.8 Certificate card.

3314.4.5.9 Grace period.

3314.4.6 Adjustments.

Exception: Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be adjusted in accordance with the requirements of Section 3307.6.

3314.4.7 Repairs.

Exceptions:

1. Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be repaired in accordance with the requirements of Section 3307.6.

2. Components and attachments may be replaced under the supervision of a competent person designated by the contractor or licensee who installed the scaffold.

3314.4.8 Maintenance.

Exceptions:

1. Where a sidewalk shed provides the base for a supported scaffold, the sidewalk shed shall be maintained in accordance with the requirements of Section 3307.6.

2. A description of the maintenance is not required for a non-adjustable suspended scaffold that, pursuant to Section 3314.3.2, is not required to be designed.

3314.5 Platform construction.

Platforms on all working levels of a scaffold shall be fully planked or decked between the front uprights and the guardrail system supports in accordance with Sections 3314.5.1 through 3314.5.7.

Exception: Platforms used solely as walkways or used solely by workers installing or removing the scaffold shall be planked to the extent necessary to ensure the safety of the public and property.

3314.5.1 Platform spacing.

3314.5.2 Maximum span for wood plank.

Table 3314.5.2 Maximum Permissible Spans for 2-Inch Plank Used on Scaffolds

Material

Full Thickness Undressed Lumber

Lumber of Nominal Thickness

Working Load (psf)

Permissible Span (ft)

For SI: 1 inch = 25.4 mm, 1 pound per square foot = 47.88 Pa, 1 foot = 304.8 mm.

3314.5.3 Minimum overhang.

The end of a platform shall extend over the centerline of its support a minimum of 6 inches (152 mm) unless cleated or otherwise restrained by hooks or equivalent means.

3314.5.4 Maximum cantilever.

The maximum cantilever shall be as follows.

3314.5.4.1 Ten feet or less.

3314.5.4.2 More than ten feet.

3314.5.5 Platform tiedown.

All platforms shall be tied down or otherwise positively restrained by hooks or equivalent means to prevent dislodgment in all directions.

3314.5.6 Platform deflection.

Platforms shall not deflect more than 1/60 of the span when loaded.

3314.5.7 Unsuitable platforms.

Unstable objects shall not be used as working platforms.

3314.6 Footings and anchorage.

3314.6.1 Safe points of anchorage.

3314.6.2 Lifeline anchorage.

3314.6.3 Lifelines and suspension ropes.

Vertical lifelines, tiebacks, and suspension ropes shall each be attached to a different point of anchorage.

3314.6.4 Scaffolds supported on structure.

Loads from supported and suspended scaffolds imposed on an existing roof or floor or similar structure shall:

1. Not be concentrated so as to cause stresses in excess of the allowable values designated for the applicable material described in this code; or

2. Be distributed with dunnage or shoring so as to prevent such load from exceeding the allowable values designated for the applicable material described in this code.

3314.7 Outrigger beams.

Outrigger beams shall be made of structural metal or equivalent strength material and shall be restrained to prevent movement.

3314.7.1 Overhang.

3314.7.2 Placement.

Outrigger beams shall be placed so that the suspension ropes will hang vertically.

3314.7.3 Outrigger beam end of suspension ropes.

Suspension ropes shall be securely fastened to the outrigger beams by steel shackles, thimbles, or equivalent means.

3314.7.4 Load end of wire suspension ropes.

3314.8 Guardrail system and debris netting.

Exceptions:

1. A guardrail system and debris netting are not required while the scaffold is being installed or removed but shall be in place before the scaffold is used.

2.1. For an outrigger scaffold, 3 inches (76 mm) or less;

2.2. For a scaffold used in conjunction with plastering and lathing operations, 18 inches (457 mm) or less; or

2.3. For all other scaffolds, 14 inches (356 mm) or less.

3314.8.1 Guardrail system.

Where required by Section 3314.8, the guardrail system for a scaffold shall meet the requirements of Section 3308.7.1 through 3308.7.7.

Exceptions: For the purposes of this section:

1. The term "floor" in Section 3308.7.1 through 3308.7.7 shall mean "platform."

3.3. For toeboards, a force of at least 50 pounds (222 N) applied in any downward or horizontal direction at any point along the toeboard.

4. Where intermediate supports, such as ballisters or additional rails are used, they shall not be more than 19 inches (483 mm) apart.

3314.8.2 Debris netting.

Exceptions:

2. Where netting is provided on the upper level of a supported scaffold, or when provided on a suspended scaffold, the netting need only extend to the height of the toprail.

3314.9 Supported scaffold.

Supported scaffolds shall meet the requirements of Sections 3314.9.1 through 3314.9.4.

3314.9.1 Height-to-base ratio.

1. Guys, ties, or braces shall be installed at locations where horizontal members support both inner and outer legs.

3314.9.2 Foundation.

3314.9.3 Plumb.

3314.9.4 Supported scaffolds at the edge.

1. Be positively anchored or tie-backed, and with all wheels or rollers secured by rope, cable, or chocking at the wheels in order to prevent movement; and

3. Have all material and equipment susceptible to dislodgement, and not being actively held by a person, secured in a manner to prevent dislodgement by wind or accidental impact.

3314.10 Suspended scaffold.

Suspended scaffolds shall meet the requirements of Sections 3314.10.1 through 3314.10.14.

3314.10.1 Suspended elements to be kept vertical and parallel.

Suspended scaffolds shall be installed and used in such a manner that the ropes or similar suspension elements are vertical and/or in a plane parallel to the wall at all times.

3314.10.2 Support.

3314.10.3 Outrigger beam location.

Outrigger beams shall be placed perpendicular to the face of the building or structure.

3314.10.4 Outrigger beam stabilization.

Exception: Multipoint adjustable suspended scaffolds shall not be stabilized by counterweights.

3314.10.5 Outrigger beams secured by tiebacks.

Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks.

3314.10.6 Outrigger beam installation.

3314.10.7 Counterweight material.

3314.10.8 Counterweight securement.

Counterweights shall be secured by mechanical means to the outrigger to prevent accidental dislodgment.

3314.10.9 Counterweight removal.

Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled.

3314.10.10 Tiebacks.

Tiebacks shall be equivalent in strength to the suspension ropes. Tiebacks shall be secured to a structurally sound anchorage on the building or structure in accordance with Section 3314.6.

3314.10.11 Horizontal tieback location.

Horizontal tiebacks shall be installed perpendicular to the face of the building or structure, or opposing angle tiebacks shall be installed. Single tiebacks installed at an angle are prohibited.

3314.10.12 Support devices.

Suspended scaffold support devices, such as C-hooks, cornice hooks, roof hooks, roof irons, parapet clamps or other similar devices shall meet the following requirements:

1. Support devices shall be made of steel, wrought iron or materials of equivalent strength.

2. Such devices shall be supported by bearing blocks.

4. Tieback rope shall be at least equal in strength to the suspension rope.

3314.10.13 Securing suspended scaffolds.

3314.10.14 Stand-off brackets prohibited.

The installation or use of a stand-off bracket is prohibited.

3314.11 Suspension rope.

Suspension ropes on suspended scaffolds shall meet the requirements of Section 3314.11.1 through 3314.11.8.

3314.11.1 Wraps of rope.

3314.11.2 Repaired rope.

The use of repaired wire rope as suspension rope is prohibited.

3314.11.3 Rope replacement.

Ropes shall be replaced or removed if any of the following conditions exist, and as otherwise prescribed by rule of the department:

1. Any physical damage that impairs the function and strength of the rope.

2. Presence of kinks that might impair the tracking or wrapping of the rope around the drums or sheaves.

3. Presence of abrasion, corrosion, scrubbing, flattening or peening causing the loss of more than one-third of the original diameter of the outside wires.

4. Heat damage caused by a torch or any damage caused by contact with electrical wires.

5. Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope.

3314.11.4 Shielding.

Suspension ropes shall be shielded from heat-producing processes.

3314.11.5 Corrosive substances.

3314.11.6 Suspended scaffold welding precautions for arcing prevention.

Precautions shall be taken to prevent the possibility of arcing through the suspension wire rope during welding operations.

3314.11.6.1 Insulated thimble.

An insulated thimble shall be used to attach each suspension wire rope to its hanging support. Excessive suspension wire rope and any additional independent lines from grounding shall be insulated.

3314.11.6.2 Insulating material.

3314.11.6.3 Protective covers.

Each hoist shall be covered with insulated protective covers.

3314.11.6.4 Grounding conductor.

3314.11.6.5 Disconnected grounding lead.

If the scaffold grounding lead is disconnected at any time, the welding machine shall be shut off or the welding lead shall be removed from the scaffold.

3314.11.6.6 Welding rod or lead.

An active welding rod or uninsulated welding lead shall not be allowed to make contact with the scaffold or its suspension system.

3314.11.7 Wire rope clips.

Wire rope clips used on suspended scaffolds shall be in accordance with Sections 3114.11.7.1 through 3314.11.7.4.

3314.11.7.1 Minimum number of clips to be installed.

Where wire clips are used on suspended scaffolds, there shall be a minimum of three wire rope clips installed a minimum of six rope diameters apart.

3314.11.7.2 Installed to manufacturer specifications.

The clips shall be installed according to the manufacturer's specifications.

3314.11.7.3 Retightening of clips.

3314.11.7.4 U-bolt clips.

When U-bolt clips are used, the U-bolt shall be placed over the dead end of the rope and the saddle shall be placed over the live end of the rope.

Exception: U-bolt clips shall not be used at the point of suspension.

3314.11.8 Swaged attachments or spliced eyes.

Exception: J-bolts shall be designed by a manufacturer and installed in accordance with the manufacturer's specifications.

3314.12 Wood pole scaffolds.

Wood pole scaffolds shall meet the requirements of Sections 3314.12.1 through 3314.12.9.

3314.12.1 Standard designs.

Table 3314.12.1(1) Minimum Size and Maximum Spacing of Members of Single Wood Pole Light Duty Scaffolds.

Uniformly Distributed Load Not to Exceed 25 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min.)

2" x 4"

3" x 4"

4" x 4"

Top 60' 4" x 4"

Lower Sect. 4" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal)

10' - 0"

Max. width of scaffold

5' - 0"

Bearers or putlogs (min.)

3" x 4" or 2" x 6" (on edge)

Ledgers (minimum):

With 6'-0" pole space

1" x 6" (on edge)

With 10'-0" pole space

1 1/4" x 9" (on edge)

Vertical spacing of ledgers (max.)

7' - 0"

Non-supporting stringers

1" x 4"

Tie-ins

1" x 4"

Bracing

1" x 4"

Planking:

Not more than 6' span

1 1/4" x 9"

Up to 10' span

2" x 9"

Toeboards

1" x 6"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(2) Minimum Size and Maximum Spacing of Members of Single Wood Pole Medium Duty Scaffolds

Uniformly Distributed Load Not to Exceed 50 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min)

3" x 4" or 2" x 6"

4" x 4"

4" x 6"

Top 60' 4" x 6"

Lower Sect. 4" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal)

8' - 0"

Max. width of scaffold

5' - 0"

8' - 0"

Bearers or putlogs (min.)

3" x 4" or 2" x 6" (on edge)

3" x 5" or 2" x 9" (on edge)

Max. spacing of bearers or putlogs

8' - 0"

Ledgers (minimum)

2" x 9" (on edge)

Vertical spacing of ledgers (max.)

7' - 0"

Non-supporting stringers

1" x 6" or 1 1/4" x 4"

Tie-ins

1" x 6"

Bracing

1" x 6"

Planking:

Not more than 6' span

1 1/4" x 9 1/4"

Up to 8' span

2" x 9"

Toeboards

2" x 9"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(3) Minimum Size and Maximum Spacing of Members of Single Wood Pole Heavy Duty Scaffolds.

Uniformly Distributed Load Not to Exceed 75 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min)

3" x 4" or 2" x 6"

4" x 4"

4" x 6"

Top 60' 4" x 6"

Lower Sect. 6" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal)

6' - 0"

Max. width of scaffold

5' - 0"

8' - 0"

Bearers or putlogs (min.)

3" x 5"

3" x 6" or 2" x 9"

Max. spacing of bearers or putlogs

6' - 0"

Ledgers (minimum)

2" x 9" (on edge)

Vertical spacing of ledgers (max.)

7' - 0"

Non-supporting stringers

2" x 4"

Tie-ins

1" x 6"

Bracing

1" x 6"

Planking

2" x 9"

Toeboards

2" x 9"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Table 3314.12.1(4) Minimum Size and Maximum Spacing of Members of Independent Wood Pole Light Duty Scaffolds

Uniformly Distributed Load Not to Exceed 25 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min)

2" x 4"

3" x 4" or 2" x 6"

4" x 4"

Top 60' 4" x 6"

Lower Sect. 6" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal):

With 1 1/4" x 9" ledgers

6' - 0"

With 2" x 9" ledgers

10' - 0"

Max. pole spacing (transverse)

10 - 0"

Ledgers (minimum)

1 1/4" x 9" (on edge) or 2" x 9"

Vertical spacing of ledgers (max.)

7' - 0"

Bearers (minimum)

1 1/4" x 9" (on edge)

Non-supporting stringers

1" x 4"

Bracing

1" x 4"

Planking:

Not more than 6' span

1 1/4" x 9 1/4"

Up to 8' span

2" x 9"

Toeboards

1" x 6"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(4):

a Total base dimension in both directions to be at least 25 percent of height.

Table 3314.12.1(5) Minimum Size and Maximum Spacing Members of Independent Wood Pole Medium Duty Scaffolds

Uniformly Distributed Load Not to Exceed 50 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min)

3" x 4" or 2" x 6"

4" x 4"

4" x 6"

Top 60' 14" x 6"

Lower Sect. 6" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal)

8' - 0"

Max. pole spacing (transverse)

10' - 0"

Ledgers (minimum)

2" x 9" (on edge)

Vertical spacing of ledgers (max.)

6' - 0"

Bearers (minimum)

2" x 9" (on edge)

Non-supporting stringers

1 1/4" x 4" or 1" x 6"

Bracing

1" x 6"

Planking:

Not more than 6' span

1 1/4" x 9 1/4"

Up to 6' span

2" x 9"

Toeboards

2" x 9"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(5):

a Total base dimension in both directions to be at least 25 percent of height.

Table 3314.12.1(6) Minimum Size and Maximum Spacing of Members of Independent Wood Pole Heavy Duty Scaffolds

Uniformly Distributed Load Not to Exceed 75 psf

Max. height of scaffold (ft)

20'

40'

60'

75'

Poles or uprights (min)

4" x 4"

4" x 6"

Top 60' 4" x 6"

Lower Sect. 6" x 6"

Pole foundation (min.)

2" x 9"

Max. pole spacing (longitudinal)

6' - 0"

Max. pole spacing (transverse)

10' - 0"

Ledgers (minimum)

2" x 9" (on edge)

Vertical spacing of ledgers (max.)

5' - 0"

Bearers (minimum)

2" x 9" (on edge)

Non-supporting stringers

1 1/4" x 9 1/4"

Bracing

1" x 6"

Planking

2" x 9"

Toeboards

2" x 9"

Guard rails

2" x 4"

Note: For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.88 Pa.

Note for Table 3314.12.1(6):

a Total base dimension in both directions to be at least 25 percent of height.

3314.12.2 Erection and removal.

3314.12.3 Materials and construction for wood pole scaffolds.

Wood pole scaffold materials and construction shall comply with the following requirements:

1. All lumber used in wood pole scaffolds or their supports shall be at least equal in strength and quality to construction grade lumber in accordance with Section 2301.

Table 3314.12.3 Size and Number of Nails Required for Scaffold Construction

Thickness of Smaller Member (in.)

Trade Size of Nail

Length of Nail (in.)

2 1/2

20d

60d

—

Width of Smaller Member (in.)

Minimum Number of Nails Required

3314.12.4 Poles.

3314.12.5 Bracing.

3314.12.6 Planking.

Planking shall comply with Items 1 through 3.

2. Where platform planks are used with overlapping ends, the ends of both the upper and lower planks shall overlap the putlog or bearer by at least 6 inches (152 mm).

3. Planks shall be laid close together and shall be of sufficient length to extend over three bearers.

3314.12.7 Connections.

3314.12.7.1 Braces.

The ends of all wooden braces shall overlap the nailed fastenings by an amount sufficient to prevent the ends of the braces from splitting.

3314.12.8 Putlogs for single pole scaffolds.

3314.12.9 Bearers for independent pole scaffolds.

3314.13 Fabricated frame scaffolds.

Fabricated frame scaffolds shall meet the requirements of Sections 3314.13.1 through 3314.13.3.

3314.13.1 Bracing.

Frames and panels shall be braced by cross, horizontal or diagonal braces or a combination thereof, which secure vertical members together laterally.

3314.13.2 Vertical joining.

3314.13.3 Frame scaffold brackets.

), unless the design provisions of Section 3314.3 have been met.

3314.14 Outrigger scaffolds (thrust out).

Outrigger scaffolds (thrust out) shall not be used for loading in excess of 50 pounds per square foot (244.1 kg/m

) (medium duty).

3314.14.1 Outrigger beams.

3314.14.2 Inboard supports.

3314.15 Two-point adjustable suspended scaffolds.

Two-point adjustable suspended scaffolds shall meet the requirements of Sections 3314.15.1 through 3314.15.7.

3314.15.1 Width and support.

3314.15.2 Hangers or stirrups.

3314.15.3 Fiber suspension rope.

3314.15.3.1 Corrosive substances.

Fiber rope susceptible to damage from corrosive substances shall not be permitted for or near any work involving the use of corrosive substances.

3314.15.3.2 Upper block.

Fiber rope shall not be used where the upper block is more than 100 feet (30 480 mm) or ten stories, whichever is less, above the ground or roof setback.

3314.15.3.3 Fit.

All blocks shall fit the size of rope they carry, and shall be constructed so as not to chafe the rope.

3314.15.4 Combination.

Two or more two-point adjustable suspended scaffolds shall not be combined into one by bridging the distance between them or by any other form of connection.

3314.15.5 Number of workers.

3314.15.6 Device to raise, lower, and hold the scaffold.

Every two-point adjustable suspended scaffold shall be equipped with a device to raise, lower or hold the scaffold in position.

3314.15.7 Platforms.

The platforms of every two-point adjustable suspended scaffold shall be ladder-type, plank-type, beam-type, light-metal type, or another type acceptable to the commissioner.

3314.16 Corner and angle scaffolds.

Corner and angle scaffolds shall comply with the requirements of Sections 3314.16.1 through 3314.16.4.

3314.16.1 Motors.

As many motors as needed shall be provided to maintain the stability of the platform under all operating conditions.

3314.16.2 Maximum number of people.

3314.16.3 Additional information.

3314.16.4 Inspection.

3314.17 Multiple-point adjustable suspended scaffolds.

Multiple-point adjustable suspended scaffolds shall comply with the following:

1. All multiple-point adjustable suspended scaffolds shall be supported by wire ropes. The use of fiber ropes is not permitted;

2. Provision shall be made to prevent supports from slipping off the ends of outrigger beams;

3. Platform bearers shall be of metal; and

4. During raising or lowering, the levels of the various sections of the scaffolds shall be kept uniform and the differential height between sections shall be minimized.

3314.18 Manually propelled, free-standing scaffolds.

All manually propelled free-standing scaffolds shall meet the following requirements:

1. Work platforms shall be tightly planked for the full width of the scaffold, except for necessary entrance openings. Planks shall be secured in place;

2. Platforms shall have a guardrail system;

3. Where a ladder is used to approach a platform, the ladder shall be secured to the scaffold;

4. Handholds shall be provided for safe passage from the ladder to the platform;

6. Provisions shall be made to prevent the scaffold from falling during movement from one location to another;

7. While the scaffold is in use, it shall rest upon a stable footing and shall stand plumb. The casters or wheels shall be locked in position; and

8. While the scaffold is being moved, no person shall be permitted to ride on it, and all tools, equipment and material shall be removed.

3314.19 Mast climbers.

Mast climbers shall be designed, constructed, permitted, installed, adjusted, maintained, repaired, used, operated, inspected, and removed in accordance with rules promulgated by the commissioner.

3314.20 Public housing construction projects: sidewalk sheds.*

(2015 N.Y. Laws Ch. 520, 12/11/2015, eff. 1/10/2016; Am. 2016 N.Y. Laws Ch. 18, 3/21/2016, retro eff. 1/10/2016)

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