N.Y.C. Admin. Code § EBC 905: Section EBC 905: Means of Egress

905.1 General.

Except as stated in Section 901.2.2, the means of egress shall comply with the requirements of Sections 305 and 805 within the work area that includes exits and corridors regardless of the number of tenants served by such exits and corridors. The means of egress shall also comply with Sections 905.1.1 and 905.1.2.

905.1.1 Means-of-egress lighting.

All interior exit stairways and ramps from the highest work area floor to the exit discharge shall be provided with artificial lighting in accordance with the requirements of Chapter 10 of the New York City Building Code.

905.1.2 Exit signs.

Means of egress from the highest work area floor to the exit discharge shall be provided with exit signs in accordance with the requirements of Chapter 10 of the New York City Building Code.

905.2 Existing combustible stairs in prior code buildings.

Where a prior code building of Occupancy Group R-1 or R-2 is undergoing a Level 2 alteration and the work area exceeds 75 percent of the building area, existing exit stairs constructed of combustible materials shall be replaced in their entirety with non-combustible construction, including stairs, landings, handrails and guards. The replacement stair shall meet the requirements of Chapter 10 of the New York City Building Code. Where the size of the existing shaft does not allow for full compliance with Chapter 10 of the New York City Building Code in regards to required dimensions, the replacement stair may comply with Section 805.12.1 of this code.

Exception: Prior code buildings that are fully sprinklered and comply with the fire protection requirements of Chapter 9 of the New York City Building Code.