N.Y.C. Admin. Code § BC D102: Section BC D102: Building Restrictions

D102.1 Types of construction permitted.

Every building hereafter erected within the fire district, or located partially in the fire district pursuant to Section D104.1, shall be either Type I, II, III or IV.

D102.2 Other specific requirements.

D102.2.1 Group H-1 prohibited.

Group H-1 occupancies shall be prohibited from location within the fire district.

D102.2.2 Construction type.

Every building, room, or space hereafter altered or erected shall be constructed as required based on the type of construction indicated in Chapter 6 except as provided in Section D102.2.4.

D102.2.3 Roof covering.

Roof covering in the fire district shall conform to the requirements of Class A or B roof coverings as defined in Section 1505.

D102.2.4 Structural fire rating.

The fire-resistance rating of bearing walls, floors, roofs and their supporting structural members shall comply with Table 601 of Chapter 6, but in no event shall such rating be less than 1-hour.

Exceptions. The following buildings or building elements may be constructed with fire-resistance rating in accordance with Table 601:

1. Buildings of Type IV construction.

2. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

3. Automobile parking structures.

4. Buildings surrounded on all sides by a permanently open space of not less than 30 feet (9144 mm).

5. Partitions complying with Section 603.1, Item 11.

D102.2.5 R-1 and R-2 Occupancies.

No building or space classified in Occupancy Group R-1 or R-2 may be located on a lot containing a building classified in construction Type IIB, VA or VB.