{"data":{"id":"us-nyc/n.y.c.-admin.-code-bc-3303","jurisdiction":"us-nyc","citation":"N.Y.C. Admin. Code § BC 3303","heading":"Section BC 3303: Safeguards and Maintenance of Site","body":"3303.1 Scope.\n\nSites shall be safeguarded and maintained in accordance with the provisions of this section to protect the public and property.\n\n3303.2 Utilities.\n\nUtilities at a site shall meet the requirements of Sections 3303.2.1 through 3303.2.6.\n\n3303.2.1 Existing services.\n\nThe location of all existing utilities and service lines shall be determined and adequate measures taken, or devices provided, to safeguard the public and property before such utilities are disturbed.\n\n3303.2.2 Maintaining essential services.\n\nSee Section 3303.9.\n\n3303.2.3 Electrical work.\n\nAll temporary electrical equipment and wiring shall meet the requirements of the New York City Electrical Code, and shall be maintained in compliance with such requirements. Portions of permanent electrical installations may be used for temporary operations provided the requirements of the New York City Electrical Code are met.\n\n3303.2.3.1 Temporary lighting for construction sites.\n\nTemporary lighting for construction sites shall use high-efficacy lamps with the following minimum efficacies:\n\n1. 60 lumens per watt for lamps over 40 watts;\n\n2. 50 lumens per watt for lamps over 15 watts but less than or equal to 40 watts; and\n\n3. 40 lumens per watt for lamps 15 watts or less.\n\n3303.2.4 Sanitary facilities.\n\nSanitary facilities shall be provided during construction or demolition activities in accordance with the New York City Plumbing Code.\n\n3303.2.5 Removing, relocating, or interrupting services.\n\nIf any utility is to be removed, relocated, or have its service interrupted, the utility company or city agency affected shall be notified at least 72 hours in advance.\n\n3303.2.6 Disconnecting, capping, and certifications.\n\nPrior to the removal of any service, the utility connection shall be discontinued and capped, and certifications to that effect issued by the representative utility company shall be filed with the department.\n\n3303.3 Watchperson.\n\nWhere an individual building being constructed or demolished has a footprint of between 5,000 square feet (1524 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) and 40,000 square feet (12 192 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t), a competent watchperson shall be on duty at the site during all hours when operations are not in progress, from the time when the foundation is poured to when all work has concluded and the certificate of occupancy or temporary certificate of occupancy has been issued. Where the building has a footprint of more than 40,000 square feet (12 192 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t), at least one additional watchperson shall be on duty for each additional 40,000 square feet (12 192 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) of building footprint, or fraction thereof. The watchperson shall be familiar with emergency notification procedures to the Fire Department, shall possess a valid security guard registration with the State of New York, shall hold a valid watchperson certificate from the Fire Department, and shall have completed a course that is at least 10-hours in length and approved by OSHA in construction industry safety and health.\n\nExceptions:\n\n1. Where the square footage of the building footprint requires two or more watchpersons, the number of watchpersons may be reduced, subject to the approval of the commissioner, where:\n\n1.1 A video monitoring system is in place, or where the layout of the building allows a continuous line of sight across the entire building; and\n\n1.2 At least one watchperson is provided.\n\n2. The building is being actively monitored in accordance with a fire safety and evacuation plan approved by the Fire Department in accordance with the New York City Fire Code.\n\n3303.4 Housekeeping.\n\nHousekeeping at a site shall be in accordance with Sections 3303.4.1 through 3303.4.11.\n\n3303.4.1 Slipping and tripping hazards.\n\nSlipping and tripping hazards in areas used by the public shall be minimized in accordance with Sections 3303.4.1.1 and 3303.4.1.2.\n\n3303.4.1.1 Maintenance of public areas.\n\nAll areas used by the public shall be maintained free from ice, snow, grease, debris, equipment, materials, projections, tools, or other items, substances, or conditions that may constitute a slipping, tripping, or other hazard.\n\n3303.4.1.2 Location of hose lines, wires, ropes, pipes, chains, and conduits.\n\nHose lines, wires, ropes, pipes, chains, and conduits shall be located so that they will not constitute a tripping hazard to the public. Where it is necessary to carry such across sidewalks, or any public way, they shall either be suspended at least 8 feet (2438 mm) above ground or, if left on the ground, suitable chamfered planks or a pedestrian bridge shall be provided to cover such.\n\n3303.4.2 Containers.\n\nSufficient containers, including but not limited to waste dumpsters, debris boxes, and skip boxes, shall be available for the storage of all debris or waste. Such containers shall comply with the following requirements:\n\n1. Containers shall be made of metal, flame-retardant plastic, or other noncombustible material.\n\n2. Containers with wheels shall be secured at the end of the workday by rope, cable, or chocking at the wheels in order to prevent movement.\n\n3. Containers shall not be placed at the edge of an unenclosed perimeter at any time, except when being moved from the floor or building.\n\n4. Containers holding debris or waste shall be covered at the end of the workday and at any time when full to near the rim. However, containers need not be covered when they are empty and not in use, or while stored in a fully enclosed space at the end of the workday and not full to near the rim.\n\nException: Combustible debris shall not be permitted to accumulate and shall be removed from the site in accordance with Section 3303.5.1.\n\n3303.4.3 Reserved.\n\n3303.4.4 Control of debris.\n\nControl of debris during construction and demolition work shall include the measures specified in Sections 3303.4.4.1 through 3303.4.4.3.\n\n3303.4.4.1 Daily cleaning.\n\nAll areas of the construction or demolition site shall be cleaned of debris at least daily.\n\n3303.4.4.2 Cleaning near unenclosed perimeters.\n\nAreas that are at least 10 feet (3048 mm) from an unenclosed perimeter, as measured in all directions from the unenclosed perimeter, shall be cleaned of debris periodically throughout the day.\n\nException: In locations where unenclosed perimeter protection has been temporarily removed, the requirements of Section 3308.10 shall apply.\n\n3303.4.4.3 Securing debris that cannot be removed by the end of the shift.\n\nDebris that cannot be removed from the site by the end of the shift shall be:\n\n1. Placed in containers meeting the requirements of Section 3303.4.2; or\n\n2. Secured overnight to protect the public and property and shall be removed from the site or placed in containers meeting the requirements of Section 3303.4.2 at the beginning of the next shift. For demolition operations, debris stored overnight on grade or earth, and neatly piled to prevent dislodgement, tipping, or spillage, shall be considered to be in compliance with this section.\n\nException: Combustible debris shall not be permitted to accumulate and shall be removed from the site in accordance with Section 3303.5.1.\n\n3303.4.5 Storage and safeguarding of materials and equipment during construction or demolition.\n\nMaterial and equipment located at a site during construction or demolition operations shall comply with Sections 3303.4.5.1 and 3303.4.5.2.\n\n3303.4.5.1 Open and exposed areas.\n\nMaterial or equipment located on a working deck, unenclosed floor, roof, ground area, or similar exposed area shall be secured or otherwise safeguarded to prevent dislodgement by wind, vibration, accidental impact, or other means.\n\n3303.4.5.2 Storage near unenclosed perimeters.\n\nWhen not being used, material or equipment shall be stored at least 10 feet (3048 mm) from all unenclosed perimeters, as measured in all directions from the unenclosed perimeter. Material or equipment shall also be secured or safeguarded in accordance with the requirements of Section 3303.4.5.1.\n\nExceptions: Provided the material or equipment is secured against dislodgement by wind, vibration, accidental impact, or other means, in lieu of the 10-foot (3048 mm) set back distance:\n\n1. Material or equipment that weighs 750 pounds (340.2 kg) or more may be stored at least 5 feet (1524 mm) from the unenclosed perimeter.\n\n2. Where the gross floor area is less than 1,000 square feet (93 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t), material or equipment, regardless of weight, may be stored at least 5 feet (1524 mm) from the unenclosed perimeter.\n\n3. Where located on a floor that is at or above the level of the horizontal safety netting in accordance with Section 3308, material or equipment may be stored at least 2 feet (610 mm) from the unenclosed perimeter.\n\n4. Material related to concrete operations may overhang the unenclosed perimeter of the building or structure, provided:\n\n4.1. The material is banded with a minimum of two equally spaced bands to prevent dislodgement;\n\n4.2. The material is braced and secured in place by positive means as indicated on the site safety plan, or where there is no site safety plan, in accordance with drawings prepared by a registered design professional;\n\n4.3. The material overhangs by no more than one-third of its length;\n\n4.4. The material is stored in an area designated on the site safety plan, or where there is no site safety plan, in an area designated on drawings prepared by a registered design professional;\n\n4.5. Such designated area is broom swept and cleared of all materials, equipment, and debris prior to the temporary removal of the vertical netting and placement of overhanging material in the designated area;\n\n4.6. The perimeter of such designated area, except for the perimeter along the unenclosed perimeter, is protected by vertical netting meeting the requirements of Section 3308.5 or an alternative system acceptable to the commissioner;\n\n4.7. Horizontal safety netting meeting the requirements of Section 3308.6 is provided at a level not more than two stories or 30 feet (9144 mm) below the overhanging material, whichever is less, with such nets in place for the full time the material is overhanging, except that the nets may be pulled in at the immediate time the material is being hoisted or lowered where such nets would conflict with the hosting or lowering operation; and\n\n4.8. The material is relocated on the next workday.\n\n3303.4.6 Storage of combustible material and equipment.\n\nStorage of combustible material and other material and equipment that may present a fire hazard, shall comply with the New York City Fire Code.\n\n3303.4.7 Storage near sidewalks, walkways, and pathways.\n\nMaterial stored adjacent to a sidewalk, walkway, or pathway that remains open to the public shall not be piled higher than 3 feet (914 mm), or where a solid fence or barrier is provided, to within one foot (305 mm) of the top of such fence or barrier. For the purposes of this section, the term \"adjacent to\" shall be any area that is within a horizontal distance that is equal to or less than the vertical height of the piled material.\n\nException: Material stored within a dumpster or similar solid container, provided such material is not piled above the top of such dumpster or container.\n\n3303.4.8 Machinery.\n\nAll exposed, electrically charged, moving or otherwise dangerous parts of machines and construction or demolition equipment shall be located, guarded, shielded, or barricaded so as to prevent contact by the public.\n\n3303.4.9 Internal combustion-powered equipment.\n\nIn addition to the requirements of this chapter, the use of internal combustion-powered equipment shall comply with the New York City Fire Code.\n\n3303.4.10 Stairs, hallways, and other means of egress.\n\nStairs, hallways, pathways, and other means of egress, including but not limited to ladders used to facilitate access to a working level, shall not be encumbered by debris, material, or equipment.\n\n3303.4.11 Daily inspection of housekeeping.\n\nA daily inspection shall be made by a competent person to verify compliance with the housekeeping requirements of Sections 3303.4.1 through 3303.4.10. If the building is a major building, the occurrence of this inspection shall be noted in the site safety log. If the building is not a major building but requires a construction superintendent, the occurrence of this inspection shall be noted in the construction superintendent's log.\n\n3303.5 Removal of material and debris.\n\nMaterial and debris shall be removed in a manner that prevents injury or damage to the public or property.\n\n3303.5.1 Removal of combustible debris.\n\nCombustible debris shall not be permitted to accumulate, and shall be removed from the site at reasonable intervals in accordance with the requirements of the New York City Fire Code.\n\n3303.5.2 Dropping or throwing prohibited.\n\nNo material, debris, or equipment shall be intentionally dropped or thrown from a building or structure.\n\n3303.5.3 Clogging.\n\nPrecautions shall be taken to prevent concrete or mortar washings, sand, grit, or any other material that would cause clogging from entering a sewer, drain, vault, or subsurface structure. Concrete washout water shall also meet the requirements of Section 3303.15.\n\n3303.5.4 Air pollution.\n\nThe provisions of the Air Pollution Control Code shall apply in order to prevent dust from becoming airborne.\n\n3303.5.5 Chutes.\n\nChutes used in association with the removal of materials shall comply with Sections 3303.5.5.1 through 3303.5.5.5.\n\n3303.5.5.1 Enclosures.\n\nChute enclosures shall comply with the following requirements:\n\n1. Material chutes that are at an angle of more than 45 degrees (0.79 rad) with the horizontal shall be entirely enclosed on all sides, except for openings at the floor levels for the receiving of materials. Such openings shall not exceed 48 inches (1219 mm) in height, measured along the wall of the chute, and all openings, except the top opening, shall be closed and secured when not in use.\n\n2. Chutes at an angle of less than 45 degrees (0.79 rad) with the horizontal may be open on the upper side.\n\n3303.5.5.2 Chute construction.\n\nChute construction shall comply with the following requirements:\n\n1. Every chute used to convey debris from a building or structure shall be rigidly supported and braced throughout its height.\n\n2. Non-manufactured chutes less than 24 inches (610 mm) in maximum dimension shall be constructed of not less than 1-inch (25.4 mm) (nominal) wood, or 1/8-inch thick (3.18 mm) steel, or a material of equivalent strength and durability acceptable to the commissioner. Chutes more than 24 inches (610 mm) in maximum dimensions shall be constructed of not less than 2-inch (51 mm) (nominal) wood, or 3/16-inch thick (4.76 mm) steel, or a material of equivalent strength and durability acceptable to the commissioner.\n\n3. Chutes shall be provided with a metal impact plate where material is forced to change direction while falling.\n\n4. A gate shall be provided at the lower end of every chute to control the loading of material into trucks and to close the chute at all other times. Splash-boards or baffles shall be erected to prevent materials from rebounding into the street or under the sidewalk shed.\n\n5. A bumper or curb at least 4 inches by 4 inches (102 by 102 mm) in section shall be provided at each chute opening where such opening is level with, or below, the floor or platform. Every space between the chute and the edge of the opening in the floor or platform shall be solidly planked.\n\n6. Chutes that are over 75 feet (22 860 mm) in height, or utilized in Group I occupancy, shall also comply with the requirements of Section 3303.5.5.3.\n\n3303.5.5.3 Chute construction where the chute is over 75 feet in height, or utilized in Group I occupancy.\n\nChutes that exceed 75 feet (22 860 mm) in height, or that are used in an occupied building where the main use or dominant occupancy is in Group I, shall either:\n\n1. Be constructed of noncombustible material; or\n\n2. Where constructed of combustible material, the combustible material of the chute shall be covered on the exterior of the chute with corrugated steel sheeting having a minimum thickness of 24 gauge through the entire height of the chute.\n\n3303.5.5.4 Supports.\n\nAll structural supports of material chutes shall be of noncombustible material.\n\n3303.5.5.5 Design and permit.\n\nNo chute shall be installed until a permit has been issued by the commissioner on the basis of drawings prepared by a registered design professional.\n\nException: Design and permit is not required for a chute that meets all of the following criteria:\n\n1. The chute is installed on the exterior of a building or structure at a height of 40 feet (12 192 mm) or less above the level of the adjoining ground;\n\n2. The chute is a manufactured product and is installed in accordance with the manufacturer's specifications; and\n\n3. The chute does not attach to or impart a load on a scaffold.\n\n3303.6 Escape hatches.\n\nWhere portable fuel fired heaters or other heating equipment are used to provide temporary heating during the placing of concrete for a floor, an escape hatch shall be provided. The escape hatch shall be located as near to the center of the building or structure as practical.\n\nExceptions:\n\n1. An escape hatch is not required where either the concrete placement floor or heating floor is the ground floor.\n\n2. An escape hatch is not required provided at least one permanent stairway is available for use on the floor where the concrete is being placed and the stair shaft is enclosed from the top of the floor where concrete is being placed to at least the top of the heating floor with either its permanent construction, a temporary smoke proof 1-hour fire rated assembly, or a 1-hour fireproof tarp wrapped tightly around the stair shaft so that no smoke can penetrate.\n\n3303.6.1 Required ladders and shields.\n\nThe escape hatch shall be constructed with at least two fixed, vertical ladders enclosed in a solid non-combustible shield. The ladders shall extend from a distance of 3 feet (914 mm) above the floor where the concrete is being placed to at least the story below the heating floor, or to the ground floor, whichever is less. The solid non-combustible shield shall enclose the ladders on all sides from the top of the floor where the concrete is being placed to at least the top of the heating floor. The inside dimensions between faces of the shield shall be not less than 3 feet 8 inches (1118 mm).\n\nException: Extension ladders may be utilized where the horizontal dimension between the faces of the shields is equal to or greater than one-quarter the height of the shaft.\n\n3303.6.2 Shield space and decking.\n\nAny gap between the shield and the perimeter of the opening in the floor under construction and also between the shield and the perimeter of the opening in the heating floor shall be decked over with 2-inch (51 mm) or heavier planking covered with plywood or sheet metal so as to make the decking smoke tight. At the termination of the ladders, the opening in the floor shall be covered completely with 2-inch (51 mm) planking or other material of equivalent strength.\n\n3303.7 Fire prevention and fire protection.\n\nFirefighting equipment, firefighting access at the construction or demolition site, and the conduct of all construction or demolition operations affecting fire prevention and firefighting shall comply with the New York City Fire Code and the provisions of Sections 3303.7.1 through 3303.7.7.\n\n3303.7.1 Water supply.\n\nA water supply for fire protection shall be provided in accordance with the New York City Fire Code.\n\n3303.7.1.1 Large footprint construction.\n\nFor a building that has a footprint of 100,000 square feet (30 480 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) or more, regardless of the height of the building, and the building is substantially enclosed, permanent or temporary fire hydrants available for fire department use shall be provided during the course of construction:\n\n1. Within 50 feet (15 240 mm) of the main entrance; and\n\n2. Along the perimeter of the building, with the hydrants located so that there is at least one hydrant along every 250 feet (76 200 mm) of building perimeter, and with no hydrant more than 50 feet (15 240 mm) from the exterior wall.\n\n3303.7.2 Fire extinguishers.\n\nFire extinguishers shall be provided in accordance with the New York City Fire Code.\n\n3303.7.3 Smoking.\n\nSmoking shall be prohibited at all construction and demolition sites. No smoking signs shall be posted at the site in accordance with the provisions of the New York City Fire Code.\n\n3303.7.4 Sprinkler systems.\n\nExisting sprinkler systems in buildings undergoing an alteration or demolition shall comply with the requirements of Sections 3303.7.4.1 through 3303.7.4.3.\n\n3303.7.4.1 Sprinklers during alteration.\n\nExisting sprinkler systems in buildings undergoing an alteration shall be maintained in accordance with Section 3303.9, except as provided in Section 3303.7.4.3. The red paint required pursuant to Section 903.6 shall be maintained during any alteration operation.\n\n3303.7.4.2 Sprinklers during demolition.\n\nWhen existing sprinkler systems with fire department hose connections are present in buildings undergoing full or partial demolition, such systems shall be maintained as a nonautomatic sprinkler system, except as provided in Section 3303.7.4.3. When demolition starts, the sprinkler risers shall be capped immediately below the floor being demolished so as to maintain the sprinkler system on all lower floors for Fire Department use. Cutting and capping of sprinklers during demolition work shall be performed only by a licensed master plumber or licensed master fire suppression piping contractor who has obtained a permit for such work. Fire department hose connections shall be kept free from obstruction and shall be marked by a metal sign reading \"Sprinkler Connection\" and by a red light at night. The red paint required pursuant to Section 903.6 shall be maintained during any demolition operations.\n\n3303.7.4.3 Removal of damaged sprinklers.\n\nRequests for a variance from the sprinkler requirements of this section shall be limited to requests to remove a damaged or inoperable sprinkler system or a portion of such system in connection with demolitions or gut rehabilitations. Applications for construction document approvals for such requests shall be filed with the department by a registered design professional in accordance with the following procedure:\n\n1. The filed application shall include a complete report prepared by the professional describing the extent of the damage and attesting as to why the system cannot be restored; and\n\n2. The variance shall not be approved by the department without the concurrence of the Fire Department as follows:\n\n2.1. The applicant shall file the request for variance with the Fire Department;\n\n2.2. The Fire Department shall review and recommend any necessary safety measures required as a condition of granting the variance; and\n\n2.3. The applicant shall submit the Fire Department's recommendation to the department along with proof of satisfactory implementation of such safety measures.\n\n3303.7.5 Standpipe systems.\n\nStandpipe systems shall meet the requirements of Section 3303.8.\n\n3303.7.6 Floor numbering and floor elevation.\n\nDuring new building construction, a vertical or horizontal enlargement, or a demolition operation that results in the removal of one or more floors in a building that is greater than 420 feet (128 m) in height above grade, or in any building, regardless of height, with non-sequential floor numbers, the following shall be provided:\n\n1. A sign at each hoistway landing prominently displaying the designated floor number and elevation above grade.\n\n2. A sign at each stair landing prominently displaying the designated floor number and elevation above grade.\n\n3. A sign or other acceptable marking immediately adjacent to the standpipe hose outlet on each floor indicating the elevation above grade of the standpipe hose outlet and, in multi-zone standpipe buildings, the zone of the riser (low, mid, high).\n\n4. A chart of the entire building listing the designated floor number and the elevation above grade of the standpipe hose outlet on each floor. The chart shall be posted in each construction elevator or hoist, and at such ground floor locations as specified in the New York City Fire Code.\n\n3303.7.7 Special provisions for Type IV construction.\n\nIn addition to the fire prevention and fire protection requirements imposed by this code, the New York City Fire Code, and other applicable law, the following provisions shall also apply during new building construction of structures categorized as Type IV construction by Chapter 6 of this code.\n\n3303.7.7.1 Interior exit stair enclosures.\n\nNotwithstanding the requirements of Section 3303.11, no wooden structural components shall be installed until the permanent stairs and interior exit stair enclosures have been constructed to a height of at least two floors above the topmost working deck, or to their full height, and enclosed with their permanent fire protected rated material. A temporary or permanent self-closing door that meets the requirements of Section 715 shall be installed at each level as soon as a walkable surface is in place at that floor level. Openings in the interior exit stair enclosures at levels where a walkable surface has not been placed shall be protected with guardrails that meet the requirements of Section 3308.7. The top of the interior exit stair enclosure, if not permanently enclosed, shall be covered with a tarp or other temporary weather protection. The stair shall be provided with temporary or permanent handrails. Permanent signs, markings, or anti-slip materials in the stairs are not required during construction.\n\n3303.7.7.2 Standpipes.\n\nA permanent or temporary standpipe system meeting the requirements of Sections 905 and 3303.8 shall be provided in each interior exit stair enclosure and kept in a state of readiness at all times for use by firefighting personnel, even if the site does not otherwise trigger the standpipe requirements of Section 3303.8, Item 1. The standpipe system shall be in place prior to the installation of wooden structural components and shall serve all levels where the interior exit stair enclosure has been constructed. No standpipe shall be considered to be in a state of readiness unless it is painted red in accordance with the provisions of Section 905.11. The standpipe system shall be maintained as a dry system and provided with an air pressurized alarm system in accordance with Section 3303.8.1. Where the building will not be provided with a permanent standpipe at the end of construction, the temporary standpipe system shall be removed once the sprinkler system for the building has been signed off.\n\n3303.7.7.3 Progressive installation of enclosures and fire protection elements.\n\nFire-rated enclosures (e.g. corridors, fire compartmentalization, fire-rated doors), noncombustible exterior walls, heat detectors required by Section 3303.7.7.5, and sprinkler systems, if required for the building, shall be installed as soon as practical, and in no case shall they lag more than two floors below the topmost walkable surface. Sprinkler systems shall be temporary or permanent and shall be maintained as a dry system during construction. Openings in the facade for hoists or material loading platforms are permitted provided the opening is covered at the end of the shift with a flame resistant tarp made tight so that no smoke can penetrate.\n\n3303.7.7.4 Temporary protection of structural connections.\n\nWhere a structural connection between a girder and column is not provided with its permanent fire-rated enclosure or protection, it shall be protected by a temporary 1-hour rated enclosure or protection. Such temporary enclosure or protection shall be installed as soon as practical after the connection has been made, and no later than by the end of the shift.\n\n3303.7.7.5 Heat detectors.\n\nHeat detectors shall be provided throughout the site. Such detectors shall send alerts to a dedicated monitoring location, either at the site or at a remote location that is monitored continuously, including days, nights, weekends, and holidays. The monitor shall be familiar with emergency contact procedures, the locations of heat detectors at the site, and shall be able to alert the New York City Fire Department as necessary and provide the fire department with the location of any heat detector that has been activated.\n\n3303.7.7.6 Watchperson.\n\nA watchperson meeting the requirements of Section 3303.3 shall be on duty during all times specified by Section 3303.3, even if the building has a footprint of less than 5,000 sq ft (1524 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t).\n\n3303.7.7.7 Site safety orientation and refresher.\n\nThe site safety orientation and refresher required by Section 3301.11 shall contain instruction on site specific fire hazards, fire safety safeguards, and fire safety procedures.\n\n3303.7.7.8 Pre-shift safety meetings.\n\nThe pre-shift safety meetings required by Section 3301.12 shall contain instruction on fire hazards, fire safety safeguards, and fire safety procedures applicable to the individual worker.\n\n3303.7.7.9 Chutes.\n\nChutes shall comply with the requirements of Section 3303.5.5.3 even if the building does not otherwise meet the trigger thresholds of Section 3303.5.5.3.\n\n3303.7.7.10 Doors.\n\nExcept when required to facilitate the active passage of personnel, material, debris, or equipment, fire rated doors shall be kept closed at all times, and all other doors shall be closed during non-working hours.\n\n3303.7.7.11 Control of saw dust and combustible debris.\n\nSawdust shall be vacuumed as operations proceed. Combustible debris, including but not limited to sawdust and scrap lumber, shall be removed from the site as required by Section 3303.5.1.\n\n3303.7.7.12 Storage of lumber.\n\nDuring non-working hours, lumber shall be stored on the ground or street, or shall be stored in a fully enclosed room meeting its permanent fire rating. No more than 1,920 cubic feet (54.37 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t3\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) of lumber shall be stored at the site at any one time.\n\nException: Columns may be stored on the topmost working deck provided they are to be installed at the start of the next shift.\n\n3303.8 Standpipe systems during construction, alteration or demolition.\n\nDuring construction, alteration or demolition operations, standpipe systems shall comply with the following:\n\n1. When, during the course of the construction of a new building, the topmost working deck reaches a height of 75 feet (22 860 mm) or greater above the ground in a building for which a standpipe system will be required, a permanent or temporary standpipe system meeting the requirements of Section 905 shall be kept in a state of readiness at all times for use by fire-fighting personnel. The standpipe system shall serve all floors that are at least 4 stories or 40 feet (12 192 mm) below the topmost working deck, whichever is less. No standpipe shall be considered to be in a state of readiness unless it is painted red in accordance with the provisions of Section 905.11. When freezing conditions may be encountered, the system in whole, or the part of the system subject to freezing conditions, shall be maintained as a dry system.\n\n2. Existing standpipe systems in structures undergoing a full demolition shall be maintained as dry standpipes. At the commencement of demolition, the standpipe risers shall be capped above the outlet on the floor immediately below the floor being demolished so as to maintain the standpipe system on all lower floors for Fire Department use. Cutting and capping of standpipes during demolition work shall be performed only by a licensed master plumber or licensed master fire suppression piping contractor who has obtained a permit for such work. Standpipe hose, nozzles and spanners are not required to be maintained and may be removed at any time. The red paint required pursuant to Section 905.11 shall be maintained during any demolition operations. All existing house check valves shall remain in place until completion of the demolition work.\n\n3. When, during the course of the construction of a new building which will have an occupiable space at a depth of 75 feet (22 860 mm) or greater below the level of the ground in a building for which a standpipe system will be required, a permanent or temporary standpipe system meeting the requirements of Section 905 shall be installed and shall be kept in a state of readiness at all times for use by firefighting personnel. The standpipe system shall serve all stories below grade and shall be installed as soon as the foundation is in place and the first elevated slab has been erected. No standpipe shall be considered to be in a state of readiness unless it is painted red in accordance with the provisions of Section 905.11. When freezing conditions may be encountered, the system in whole, or the part of the system subject to freezing conditions, shall be maintained as a dry system.\n\n4. When, during the course of alteration or partial demolition operations in a building for which a standpipe system is required, the standpipe system shall be maintained in accordance with Section 3303.9. In an unoccupied building, an existing wet standpipe system may be maintained as a dry system subject to the approval of the commissioner and the commissioner of the fire department, and also provided the standpipe system is equipped with an air pressurized alarm system meeting the requirements of Section 3303.8.1. No standpipe shall be considered to be in a state of readiness unless it is painted red in accordance with the provisions of Section 905.11.\n\n4.1. If the alteration work results in the addition of new stories to the structure at a height of 75 feet (22 860 mm) or greater above the level of the ground, the requirements of Item 1 of this section shall apply to such new stories during the course of the alteration operation.\n\n4.2. If the alteration work results in the addition of new occupiable space at a depth of 75 feet (22 860 mm) or greater below the level of the ground, the requirements of Item 3 of this section shall apply to such new occupiable space below grade during the course of the alteration operation.\n\n3303.8.1 Air pressurized alarm system for dry standpipe systems during construction or demolition operations.\n\nDry standpipe systems utilized during construction or demolition operations shall be provided with an air pressurized alarm system as set forth in Items 1 through 5 below. The provisions of NFPA 14, Chapter 12, as modified in Appendix Q, shall also apply.\n\n1. \n\t\t\t\t\t\t\t\t\t\t\t\t\tFull demolitions. In buildings and structures undergoing a full demolition, all existing standpipes shall be maintained in a state of readiness as a dry system in accordance with Item 2 of Section 3303.8 and shall be provided with an air pressurized alarm system.\n\n2. \n\t\t\t\t\t\t\t\t\t\t\t\t\tNew construction, alteration, and partial demolition. Where a dry standpipe system is utilized during new construction, alteration, or partial demolition operations, such standpipe system shall be provided with an air pressurized alarm system.\n\n3. \n\t\t\t\t\t\t\t\t\t\t\t\t\tSubmission of application. An application to install an air pressurized alarm system shall be filed by a registered design professional and a permit obtained by a licensed master plumber or licensed master fire suppression piping contractor. A licensed electrician shall obtain all required electrical permits in accordance with Chapter 3 of Title 27 of the Administrative Code.\n\n4. \n\t\t\t\t\t\t\t\t\t\t\t\t\tSpecifications. The following provisions shall apply to the air pressurized alarm system:\n\n4.1 \n\t\t\t\t\t\t\t\t\t\t\t\t\tPressure. Pressure shall be maintained in the standpipe and cross connections at all times and shall not exceed 25 psig (172 kPag) by utilizing nitrogen or an air compressor with an air dryer. The supervisory pressure shall be as determined by a registered design professional.\n\n4.2 \n\t\t\t\t\t\t\t\t\t\t\t\t\tAutomatic air pressurized alarm activation. The alarm shall be automatically activated when the pressure drops below the supervisory pressure or rises above the maximum pressure of 25 psig (172 kPag). When the alarm is activated, notification shall be made to the Fire Department in accordance with the New York City Fire Code, all work at the site shall cease, except as provided in Item 4.2.1, and an investigation of the entire standpipe system and air compressor shall be immediately performed to determine the cause of the alarm. Unless authorized by the Fire Department, no construction or demolition work shall resume until the standpipe system is repaired and the appropriate pressure is restored, except that any repairs to the standpipe system needed to restore the required pressure shall be undertaken immediately and the standpipe system restored as soon as possible. There shall be compliance with the requirements of the New York City Fire Code while the standpipe system is out of service. Upon completion of repairs to the standpipe system, a full inspection of such system shall be performed, which shall include, among other things, visually tracing the standpipe, including risers, cross connections and fire department connections to verify that no breach exists and checking all gauges of the standpipe system to ensure the standpipe system has been restored to a state of readiness.\n\n4.2.1 Notwithstanding the provisions of Item 4.2, the activation of the alarm shall not require the cessation of work necessary for the completion of concrete pouring operations in progress at the time of alarm activation, where such cessation would cause a cold joint that would impair the structural integrity of the finished construction. The continuation of such operations shall be permitted only until an orderly termination of such operations can be effectuated. The site safety manager or coordinator shall record the names and locations of any employees necessary for the completion of the concrete pouring operations and provide them to the Fire Department personnel who arrive on the scene.\n\n4.3 \n\t\t\t\t\t\t\t\t\t\t\t\t\tAir compressor. The air compressor shall be designed to automatically cut in and cut out at the supervisory pressure and shall be tied into the standpipe system between the fire department connections and the house check valves. The air compressor shall utilize an air dryer during times when freezing conditions exist to condition the air entering the dry standpipe system.\n\n4.4 \n\t\t\t\t\t\t\t\t\t\t\t\t\tAlarm. The standpipe alarm system shall utilize pressure switches and control equipment to annunciate a local audible alarm on site that can be heard during working and non-working hours. The audible signal of the horn shall be at least 15 dBA above the ambient noise level but no more than 110 dBA.\n\n4.5 \n\t\t\t\t\t\t\t\t\t\t\t\t\tPower supply. The standpipe alarm system shall be connected to an active, dedicated power supply at all times.\n\n4.6 \n\t\t\t\t\t\t\t\t\t\t\t\t\tCheck valves. Check valves shall be installed to prevent water from entering the air compressor.\n\n4.7\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t Locks and caps. All control valves shall be chained and locked in the appropriate position and shall be provided with capped outlets. All hose valves shall also be provided with capped outlets.\n\n4.8 \n\t\t\t\t\t\t\t\t\t\t\t\t\tFire Department connections. Three inch (76 mm) iron hose plugs with gaskets in Fire Department connection swivels shall be provided.\n\n4.9 \n\t\t\t\t\t\t\t\t\t\t\t\t\tDrainage. Provisions shall be made to drain water in any trapped sections of the dry standpipe system that are subject to freezing.\n\n4.10 \n\t\t\t\t\t\t\t\t\t\t\t\t\tManual air release connection. A minimum 2.5-inch (64 mm) connection located immediately downstream of the fire department connection check valve shall be provided and piped to a location immediately adjacent to the fire department connections. This line shall be fitted with a 2.5-inch (64 mm) hose valve and shall allow for release of the pressurized air from the dry standpipe system. The number of air release valves provided shall be such that the air pressure shall be released in no more than 3 minutes, which shall be verifiable by an actual air release test performed at the time of the initial installation.\n\n4.11 \n\t\t\t\t\t\t\t\t\t\t\t\t\tConstruction documents. Plans shall identify all standpipe risers, cross connections, fire department connections, any intermediate check valves that have to be removed, proposed location of the air release connections, designation of the supervisory pressure, complete information regarding the alarm system, and procedures for the safe pressurization and depressurization of the system.\n\n4.12 \n\t\t\t\t\t\t\t\t\t\t\t\t\tSignage. Signage shall be provided at all fire department connections indicating that the dry standpipe system is pressurized and showing the location of the manual air release.\n\n4.13 \n\t\t\t\t\t\t\t\t\t\t\t\t\tPressure gauges. A system of pressure gauges shall be installed at the compressor and at the most remote points of the system from the compressor.\n\n5. \n\t\t\t\t\t\t\t\t\t\t\t\t\tPlanned removal from service of standpipe system and standpipe air pressurized alarm. Whenever the standpipe system is to be placed out of service for the addition of a new section to the system, removal of an existing section as demolition operations progress, or other planned event, the standpipe alarm may be temporarily deactivated subject to compliance with the requirements of the New York City Fire Code. Where a site safety manager or coordinator is required by this code, all alarm activations, inspections, and repairs shall be logged into the log book maintained by such site safety manager or coordinator. If the standpipe system is not returned to a state of readiness and the alarm reactivated within 2 hours of such planned removal from service, all construction or demolition work at the site shall cease, unless otherwise approved by the Fire Department.\n\n3303.8.2 Free from obstruction.\n\nFire department hose connections shall be kept free from obstruction and shall be marked by a metal sign reading, \"Standpipe Connection\" and by a red light at night.\n\n3303.8.3 Use of standpipes for purposes other than supplying water for firefighting.\n\nStandpipes may be used for a purpose other than to supply water for firefighting operations, including but not limited to supplying water or compressed air for construction or demolition operations, subject to the approval of the Fire Department and provided at least one standpipe riser is maintained at all times for firefighting operations. Where the standpipe is used to supply water for construction or demolition operations and freezing conditions may occur, the standpipe shall be completely drained after use to prevent freezing.\n\n3303.9 Elements to be maintained in existing buildings.\n\nRequired means of egress, existing structural elements, fire protection devices, and sanitary safeguards shall be maintained at all times during construction or demolition operations in existing buildings. Required means of egress shall not be obstructed in any manner that would destroy the full effectiveness of such means of egress.\n\nException: Where adequate alternate provisions are provided in accordance with the requirements of this code, or where the element is temporarily or permanently disconnected, removed, or demolished in accordance with the requirements of this code and of the agency or authority having jurisdiction to temporarily or permanently disconnect, remove, or demolish such element. Such alternative means, disconnection, removal, or demolition shall be shown on the approved plans. Fire protection systems, including but not limited to sprinklers, standpipes, and fire alarms, shall only be taken out of service in accordance with the requirements of the New York City Fire Code.\n\n3303.10 Operations in occupied buildings.\n\nWhen construction or demolition activity occurs in an occupied building, barricades, signs, drop cloths, and other protective means shall be installed and maintained as necessary to provide reasonable protection for the occupants against hazard and nuisance. Such protective means shall be indicated on an occupant protection plan, or where a tenant protection plan is required by Section 3303.10.1, on a tenant protection plan.\n\n3303.10.1 Tenant protection plan.\n\nIn buildings containing any occupied dwelling units, including newly constructed buildings that are partially occupied where work is still ongoing within the building, all alteration, construction, or partial demolition work shall be performed in accordance with a tenant protection plan as required by Article 120 of Title 28 of the Administrative Code.\n\n3303.10.2 Inspections of tenant protection plan.\n\nThe owner shall notify the department in writing not more than 72 hours, but not less than 24 hours prior to the commencement of any work requiring a tenant protection plan. The department shall conduct an inspection of 10 percent of such sites within seven days after the commencement of such work to verify compliance with the tenant protection plan. The department shall conduct follow up inspections of such sites every 180 days until such construction is completed to verify compliance with the building code and tenant protection plan. Thereafter, the department shall conduct an inspection within 10 days of receipt of a complaint concerning such work. Where the department receives a complaint alleging that dust is not being contained or controlled in accordance with a tenant protection plan, it shall conduct an inspection within 24 hours. The department shall, in collaboration with the department of health and mental hygiene, develop a procedure to complete a lead-contaminated dust test upon a determination that dust is not being contained or controlled during such tenant protection plan inspections or an inspection conducted in response to a complaint, and take any appropriate enforcement action, including the issuance of an order pursuant to Section 28-207.2 of the Administrative Code. The department of health and mental hygiene shall assist the department to implement such procedure, including submitting dust samples collected by the department to a laboratory for analysis. The department shall refer the result of any such inspection to the department of health and mental hygiene for review and further inspection in accordance with the New York city health code.\n\n3303.10.3 Enforcement of tenant protection plan.\n\nIf work is not being performed in accordance with the tenant protection plan, the commissioner may issue a stop work order pursuant to Section 28-207.2 of the Administrative Code.\n\n3303.11 Stairs during construction or demolition.\n\nStairs shall meet the requirements of Section 3303.11.1 through 3303.11.3 during construction or demolition work.\n\n3303.11.1 Existing stairs.\n\nStairs in an existing building undergoing alteration or a partial demolition shall be maintained in accordance with Section 3303.9. Stairs in a building undergoing a full demolition shall comply with Section 3306.9.9.\n\n3303.11.2 Stairs during building construction or enlargements.\n\nDuring new building construction or the enlargement of an existing building, stairs shall be provided at all locations where a permanent stair will be required and shall serve all floors. At least one of the provided stairs must be of permanent construction for its full length; in all other locations, the stairs may be of temporary or permanent construction.\n\nExceptions:\n\n1. Where a floor is open to the public, all stairs required for egress from the floor must be of their permanent construction from that floor to the ground level.\n\n2. Stairs are not required where the floor is closed to the public and the floor is less than 4 stories or 40 feet (12 192 mm) below the topmost working deck, whichever is less.\n\n3. During the construction or enlargement of a building whose primary structural system consists of structural steel, where it is not feasible to provide one or more permanent stairs to serve all floors that are at least 4 stories or 40 feet (12 192 mm) below the topmost working deck, whichever is less, all stairs shall be of their permanent construction up to the level of the topmost completed steel floor, and temporary stairs, acceptable to the commissioner, shall be brought up in all locations to serve all remaining floors that are at least 4 stories or 40 feet (12 192 mm) below the topmost working deck, whichever is less. At a minimum, the temporary stairs shall be made of non-combustible material, be equipped with adequate handrails, be provided with landings that are level with the adjoining floor, and have riser height and tread depths that are uniform, within 1/4 inch (6 mm), for each flight of stairs.\n\n3303.11.3 Lighted and kept free of obstructions.\n\nAll stairs in a building undergoing construction or demolition shall be lighted at all times, and shall be kept free of equipment, debris, and material in accordance with Section 3303.4.10.\n\n3303.12 Elevators and hoists during construction or demolition.\n\nElevators and hoists shall meet the requirements of Sections 3303.12.1 through 3303.12.5 during construction or demolition work.\n\n3303.12.1 Publicly accessible floors.\n\nExisting elevators serving publicly accessible floors in a building undergoing construction or demolition work shall be maintained in accordance with Section 3303.9.\n\n3303.12.2 Floors closed to the public.\n\nWhen required by Sections 3303.12.2.1 through 3303.12.2.4, floors closed to the public in a new or existing building undergoing construction or demolition work shall be served by, at least, either:\n\n1. An elevator provided with Phase I and Phase II recall meeting the requirements of Chapter 30, which shall be kept in readiness at all times for Fire Department use; or\n\n2. A hoist meeting the requirements of Section 3318, which shall be available at all times for Fire Department use.\n\nException: An elevator or hoist is not required during the course of construction or demolition of a building that does not require a permanent elevator.\n\n3303.12.2.1 Initial installation of an elevator or hoist during the construction or enlargement of a building whose height will exceed 75 feet.\n\nDuring the construction or enlargement of a building, once the topmost working deck exceeds 75 feet (22 860 mm) in height above the lowest level of the ground, all floors that are closed to the public and within 40 feet (12 192 mm) above the lowest level of the ground shall be served by an elevator or hoist meeting the requirements of this section. Where this measurement lands between floors, the measurement shall be rounded such that the elevator or hoist is brought up to serve the higher floor.\n\n3303.12.2.2 Increasing the height of the elevator or hoist during the construction or enlargement of a building.\n\nDuring the construction or enlargement of a building, when the topmost working deck exceeds 75 feet (22 860 mm) in height above the lowest level of the ground and subsequent to complying with Section 3303.12.2.1, all floors that are closed to the public and that are at least 4 stories or 48 feet (14 630 mm) below the topmost working deck, whichever is less, or for a building whose primary structural system consists of structural steel, at least 4 stories or 64 feet (19 507 mm) below the topmost working deck, whichever is less, shall be served by an elevator or hoist meeting the requirements of this section. However, no more than two weeks after the topmost working deck has become a walkable floor, a hoist or elevator meeting the requirements of this section shall be brought up to serve all remaining floors in the building that are closed to the public.\n\n3303.12.2.3 During demolition.\n\nDuring the demolition of a building where one or more floors are removed from the building, all floors in the building that are closed to the public and that are more than 7 stories or 75 feet (22 860 mm) below the topmost working deck, whichever is less, shall be served by an elevator or hoist meeting the requirements of this section.\n\n3303.12.2.4 Other instances.\n\nDuring the alteration of a building that would require a permanent elevator and where the scope of work does not constitute an enlargement or involve the removal of one or more floors from the building, all floors in the building that are closed to the public shall be served by an elevator or hoist meeting the requirements of this section.\n\n3303.12.3 Deep excavations.\n\nWhere the proposed lowest level of a building with a footprint of 10,000 square feet (929 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) or greater is constructed at a depth greater than 75 feet (22 860 mm), a hoist meeting the requirements of Section 3318 shall be available at all times for Fire Department use once the foundation is in place and the first elevated slab has been erected. The hoist shall serve the level at grade and all stories below grade.\n\nException: Subject to the approval of the commissioner, alternate means available at all times for Fire Department use, including but not limited to a vehicular ramp, shall be provided.\n\n3303.12.4 Converting elevators.\n\nWhere an existing elevator is converted from passenger or freight use the department shall be notified in accordance with the requirements of Chapter 30.\n\n3303.12.5 Hoist travel.\n\nIf the travel of the hoist cannot be increased or decreased to fulfill the requirements of this section due to inclement weather, it shall be increased by the end of the next working day.\n\n3303.12.6 Stretcher accommodation.\n\nWhere a hoist is provided, it must be capable of accommodating two standing individuals and a stretcher that is 84 inches in length by 24 inches in width (2134 mm by 610 mm).\n\n3303.13 Interrupted or abandoned and discontinued operations.\n\nWhere construction or demolition work has been interrupted or abandoned and discontinued, the owner of the site shall ensure the site is secured, protected, and maintained to safeguard the public and property, and that the site is in compliance with the requirements of Sections 3303.13.1 through 3303.13.3.\n\n3303.13.1 Fencing.\n\nA fence meeting the requirements of Section 3307.7 shall be maintained throughout the duration of time that operations at the site are interrupted or abandoned and discontinued.\n\n3303.13.2 Safety monitoring plan.\n\nWhere work has been interrupted or abandoned and discontinued for a period of at least three months, a safety monitoring plan satisfactory to the commissioner shall be prepared by a qualified person on behalf of the owner of the property and submitted to the department by the owner. Such safety monitoring plan shall be specific to the site, shall identify safeguards to be instituted and maintained to secure the site, and shall specify monitoring to be performed during the duration of suspension of work. The owner of the property shall be responsible for ensuring compliance with such plan.\n\n3303.13.3 Filling and grading.\n\nWhere work has been interrupted or abandoned and discontinued for a period of at least three months, all open excavations shall be filled and graded to eliminate all steep slopes, holes, obstructions or similar sources of hazard. Fill shall consist of clean, noncombustible material. The final surface shall be graded in such a manner as to drain the lot, eliminate pockets in the fill, and prevent the accumulation of water without damaging any foundations on the premises or on adjoining property.\n\nException: Filling and grading is not required for abandoned, discontinued, or interrupted excavations that are:\n\n1. Secured in accordance with Section 3303.13.2, and\n\n2. Inspected periodically by an engineer to verify continued stability of the excavation, with a record of such inspections signed, sealed, and dated by the engineer.\n\n3303.14 Water conditions.\n\nThe requirements of Sections 3303.14.1 through 3303.14.5 shall be followed to control the accumulation of water.\n\n3303.14.1 Drainage.\n\nNo condition shall be created as a result of construction or demolition operations that will interfere with natural surface drainage. Water courses, drainage ditches, etc., shall not be obstructed by debris, refuse, waste building materials, earth, stones, tree stumps, branches, or other objects that may interfere with surface drainage or cause the impoundment of surface waters.\n\n3303.14.2 Protection of foundations.\n\nProvision shall be made to prevent the accumulation of water or water damage to any foundations on the premises or to adjoining property.\n\n3303.14.3 Drainage of excavations.\n\nAll excavations shall be drained, and the drainage shall be maintained as long as the excavation continues or remains. Where necessary, pumping shall be used, provided proper permits are obtained from the New York City Department of Environmental Protection.\n\n3303.14.4 Clogging.\n\nThe requirements of Section 3303.5.3 shall apply.\n\n3303.14.5 Dewatering.\n\nThe contractor or other entity performing the soil or foundation work shall dewater the site, as needed, for the progress of the work, and shall take all necessary measures to prevent settlement, slope failure, and damage to buildings, structures, and property affected by the dewatering operations.\n\n3303.14.5.1 Dewatering plan.\n\nWhere dewatering is performed to drawdown or control the level of the water table, the dewatering operation shall proceed in accordance with a site specific plan developed by a registered design professional. The dewatering plan must incorporate all the conditions and findings identified in the geotechnical report required by Section 1803.6, the evaluation analysis required by Section 1817, and the preconstruction survey required by Section 3309.4.3. At a minimum, the plan shall indicate:\n\n1. Height of the water table, including all seasonal fluctuations;\n\n2. Anticipated schedule of dewatering operations;\n\n3. The location of wells, settlement tanks, observation points, and dewatering equipment;\n\n4. Maximum discharge;\n\n5. Permissible drawdown outside of the limits of the excavation;\n\n6. Thresholds for anticipated settlement;\n\n7. Thresholds for anticipated lateral movement; and\n\n8. The program to monitor and control water table drawdown and settlement/movement of affected structures, property, and temporary construction installations. Program criteria to be specified shall include, but not be limited to, the monitoring frequency, plan to periodically test the discharge from the pumps to determine if the water being extracted contains unanticipated fine grain soil or sand, plan to account for fluctuations in the water table (due to seasonal conditions, weather, or other factors), reporting requirements for the monitoring program, and procedures to be implemented when thresholds are exceeded.\n\n3303.15 Concrete washout water.\n\nConcrete washout water shall not be allowed to enter any sewer, catch basin, drain, or body of water or to leach into the ground.\n\n3303.15.1 Collection and containment.\n\nAll concrete washout water shall be collected and contained in or on the concrete mixer truck or in pre-manufactured watertight containers specifically designed and fabricated for the purpose of collecting and containing concrete washout water on-site. Such containers shall be of sufficient quantity and size to accommodate all rinsing operations required on-site so as not to delay the timely return of concrete ready mix trucks to the concrete plant and shall be protected from breach or overflow at all times.\n\n3303.15.2 Location.\n\nRinsing operations and concrete washout water containers shall not be located less than 30 feet from any sewer, drain, catch basin, or body of water without the written approval of the commissioner.\n\n3303.15.3 Disposal.\n\nCollected concrete washout water shall be transported off site for treatment and disposal or contained on site until completely evaporated. Any hardened concrete remaining after evaporation shall be disposed of, reused or recycled.\n\n3303.16 Worker sheds, contractor sheds, contractor offices, and similar structures.\n\nWorker sheds, contractor sheds, contractor offices, and similar structures shall:\n\n1. Be provided with a hardwire or battery powered smoke detector that meets the requirements of this code and the New York City Fire Code;\n\n2. Be equipped with an automatic sprinkler system or a non-water automatic fire-extinguishing system, including a dry-chemical extinguishing system, that meets the requirements of this code and the New York City Fire Code, when the shed or office is installed or predominantly used to facilitate work at a building that requires an automatic sprinkler system;\n\n3. Meet the door width, travel distances, and occupancy load requirements of Chapter 10 of the building code; and\n\n4. Be constructed to comply with either 4.1, 4.2, or 4.3:\n\n4.1. Meet the requirements of this code for Types I or II fire-resistance-rated construction where:\n\n4.1.1. Located within a building or structure; or\n\n4.1.2. Located 30 feet (9144 mm) or less from another building or structure within the fire district.\n\n4.2. Meet the requirements of this code for Type III fire-resistance-rated construction where:\n\n4.2.1. Located outside of a building or structure; and\n\n4.2.2. Located more than 30 feet (9144 mm) from another building or structure within the fire district.\n\n4.3. Meet the requirements of this code for Type III fire-resistance-rated construction where:\n\n4.3.1. Located outside of a building or structure; and\n\n4.3.2. Located outside of the fire district.\n\n3303.16.1 Permit required.\n\nNo worker shed, contractor shed, contractor office, or similar structure shall be installed until a permit for the shed or office has been issued by the commissioner in accordance with the requirements of Chapter 1 of Title 28 of the Administrative Code.\n\nException: A permit is not required for a worker shed, contractor shed, contractor office, or similar structure that does not exceed 1 story in height and 120 square feet (36.58 m\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t2\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t) in area, and further provided that the shed, office, or similar structure is located more than 30 feet (9144 mm) from another shed, or office, or similar structure.\n\n3303.16.2 Utility hookups.\n\nNo electrical, plumbing, or other utility hook up shall be made to a worker shed, contractor shed, contractor office, or similar structure until a permit for the hookup has been issued by the commissioner in accordance with the requirements of Chapter 1 of Title 28 of the Administrative Code. Where required by Chapter 4 of Title 28 of the Administrative Code, the utility hookup must be made by or under the direct and continuing supervision of a licensed individual.","path":["New York City Administrative Code","Title 28","Chapter 7: New York City Building Code"],"source_url":"https://files.amlegal.com/pdffiles/NewYorkCity/Admin/XML.zip","current_through":"Local Law 2026/135 (enacted August 31, 2026)","vintage":"","retrieved_at":"2026-09-06T02:48:57Z","sha256":"6631372d11117719afac2efd19cabbc1c196b35d65c05c2ad0b7a4cd28c83741","source_id":"us-nyc","stale":false,"prev":"us-nyc/n.y.c.-admin.-code-bc-3302","next":"us-nyc/n.y.c.-admin.-code-bc-3304"},"notice":"GroundRules: Original legal text. Not legal advice."}