Exception: At a fleet vehicle motor fuel dispensing facility inside a building, where only Class II and Class III liquids are dispensed, the number of vehicles serviced at any one time shall be permitted to be increased to 12. [30A:126.96.36.199]
- The system shall be interlocked with the dispensing system so that airflow is established before any dispensing device can operate. Failure of airflow shall automatically shut down the dispensing system.
- The exhaust system shall be designed to provide air movement across all portions of the floor of the fuel dispensing area and to prevent the flowing of ignitible vapors beyond the dispensing area.
- Exhaust inlet ducts shall not be less than 3 in. (76 mm) or more than 12 in. (305 mm) above the floor. Exhaust ducts shall not be located in floors or penetrate the floor of the dispensing area. Exhaust ducts shall discharge to a safe location outside the building.
- The exhaust system shall provide ventilation at a rate of not less than 1 ft3/min/ft2 (0.3 m3/min/m2) of floor area, based on the fuel dispensing area.
- The exhaust system shall meet all applicable requirements of NFPA 91.
Exception: Slip-resistant, nonabsorbent, interior floor finishes having a critical radiant flux not more than 9.87 Btu/in.2 (0.45 W/cm2), as determined by NFPA 253, shall be permitted. [30A:7.4.4]
- The major repair garage is two or more stories in height, including basements, and any one of the floors exceeds 10.000 ft2 (930 m2).
- The major repair garage is one story and exceeds 12.000 ft2 (1115 m2).
- The major repair garage is servicing vehicles parked in the basement of the building. [30A:7.4.6]
Exception No. 1: Unit heaters, when installed in accordance with Chapter 7 of NFPA 30A, need not meet this requirement.
Exception No. 2: Heat-producing equipment for any lubrication room or service mom where there is no dispensing or transferring of Class I or Class II liquids or LP-Gas, when installed in accordance with Chapter 7 of NFPA 30A, need not meet this requirement. [30A:7.6.2]