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406.2.1 Classification
Parking garages shall be either open, as per Section 406.3, or enclosed, as per Section 406.4. Parking garages shall also comply with the special provisions of Section 510.
406.2.2 Clear Height
The clear height of each floor level in vehicle and pedestrian traffic areas shall not be less than 7 feet (2134 mm). Vehicle and pedestrian areas accommodating van-accessible parking required by Section 1106.5 shall conform to ICC A117.1.
406.2.3 Guards
Guards shall be provided in accordance with Section 1013. Guards serving as vehicle barrier systems shall comply with Sections 406.2.4 and 1013.
406.2.4 Vehicle Barrier Systems
Vehicle barrier systems not less than 2 feet 9 inches (835 mm) high shall be placed at the end of drive lanes and at the end of parking spaces where the vertical distance to the ground or surface directly below is greater than 1 foot (305 mm). Vehicle barrier systems shall comply with the loading requirements of Section 1607.7.3.

Exception: Vehicle storage compartments in a mechanical access parking garage.
406.2.5 Ramps
Ramps shall have a gradient not exceeding one in seven, with nonslip surfaces. A level landing having a minimum dimension of 20 feet (6096 mm) shall be provided at the discharge point of all ramps at the street level, within the property line. Ramps used for the movement of motor vehicles need not be enclosed when serving tiers above grade. Vehicle ramps may serve as part of a means of egress provided that such ramp complies with the requirements of Sections 1018.1.1 and 1018.1.2.
406.2.6 Floor Surface
Parking surfaces shall be of concrete or similar noncombustible and nonabsorbent materials. The area of floor used for parking of vehicles shall be sloped to facilitate the movement of liquids to a drain.

  1. Asphalt parking surfaces are permitted at ground level.
  2. Floors of Group S-2 parking garages shall not be required to have a sloped surface.
406.2.7 Separation
Parking garages shall be separated from other occupancies in accordance with Section 510.
406.2.8 Special Hazards
Openings from a parking garage to any room in which there is a fuel-fired appliance shall be by means of a vestibule providing a two-doorway separation. Such vestibule and doorway shall be minimum 1-hour rated construction.

Exception: A single door, in compliance with Table 715.4, shall be permitted, provided the sources of ignition in the appliance are at least 18 inches (457 mm) above the floor.
406.2.9 Attached to Rooms
Openings from a parking garage directly into a room used for sleeping purposes shall not be permitted.
406.2.10 Fire-Fighter Aisles
In any parking garage or lot, one or more aisles, at least 24 inches (610 mm) in width, shall be provided to permit access by fire-fighting personnel to all parts of the garage or lot. There shall not be more than three rows of parked motor vehicles between aisles.
406.2.11 Electric Vehicle Charging Stations
Parking garages shall be capable of supporting electrical vehicle charging stations in accordance with this section. Electrical raceway to the electrical supply panel serving the garage shall be capable of providing a minimum of 3.1 kW of electrical capacity to at least 20 percent of the parking spaces of the garage. The electrical room supplying the garage must have the physical space for an electrical supply panel sufficient to provide 3.1kW of electrical capacity to at least 20 percent of the parking spaces of the garage. Such raceway and all components and work appurtenant thereto shall be in accordance with the New York City Electrical Code.

  1. The provisions of this section shall not apply to parking garages for buildings of Occupancy Group M (Mercantile).
  2. The commissioner may waive compliance with this section if the commissioner determines that the parking garage is a temporary facility that will be in service no longer than 3 years.
  3. The provisions of this section shall not apply to parking garages for buildings in which not less than fifty percent of the residential units are for households earning up to sixty percent of the area median income as determined by the United States Department of Housing and Urban Development.

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