§ 2308-01 Mobile Compressed Natural Gas Motor Fuel Systems.
RCNY § 2308-01
(a)Scope. This section sets forth requirements for the design, installation, operation and maintenance of mobile CNG motor fuel systems and mobile CNG cascades.
(b)Definitions. The following terms shall, for purposes of this section and as used elsewhere in the rules, have the meaning shown herein: Mobile CNG motor fuel system. A CNG motor fuel system mounted on a vehicle chassis, intended to be driven to different sites for the purpose of dispensing CNG into portable containers, storage systems or motor vehicle-mounted containers. Mobile CNG cascade. Multiple CNG containers connected together by rigid steel pipe or tubing, mounted on a trailer or motor vehicle chassis, and intended to be driven or towed to different sites for the purpose of dispensing CNG into portable or motor vehicle-mounted containers.
(c)Mobile CNG Motor Fuel-Dispensing Systems. Mobile CNG motor fuel systems shall comply with the following requirements: (1) Design and installation requirements. The design and installation of mobile CNG motor fuel systems shall comply with the requirements of and the following: (A) Natural gas connections for the gas supply shall be designed and installed in compliance with the requirements of the natural gas utility and the Fuel Gas Code. (B) Ventilation openings shall be approved by the Department. (C) Labels reading "MANUAL CYLINDER SHUT OFF VALVE" in lettering a minimum of 1/2" high shall be placed on the appropriate access doors.
(2)Fire safety precautions. The following fire safety precautions shall be observed at all times during operation of mobile CNG motor fuel systems: (A) Mobile CNG motor fuel systems may only be operated outdoors. (B) The engine and ignition system of the mobile CNG motor fuel system and the motor vehicle into which CNG is being dispensed shall be off during dispensing operations. (C) The wheels of such mobile systems shall be chocked during compressing and/or dispensing operations. (D) Motor vehicles into which CNG is being dispensed shall be electrically grounded to the mobile CNG motor fuel system. (E) A cellular telephone by which fires or other emergencies may be reported to the Department shall be provided to the certificate of fitness holder responsible for the operation of the mobile CNG motor system.
(d)Mobile CNG Cascades. Mobile CNG cascades shall comply with the following requirements: (1) Design and installation requirements. The design and installation of mobile CNG cascades shall comply with the requirements of and the following: (A) A manual shut-off valve shall be provided. Such valve shall be accessible and shall be installed in a protected location to minimize damage from vibration and unsecured objects. Labels with a minimum of 1/2" letters indicating the location of the manual shut-off valve shall be affixed to the mobile CNG cascade at the valve or other conspicuous location. (B) CNG containers and shut-off valves shall be color-coded as follows, and the pressure of each bank clearly indicated on the unit: (1) High pressure – black (2) Medium pressure – green (3) Low pressure – orange (C) Labels reading "COMPRESSED NATURAL GAS" in red lettering a minimum of six (6) inches high shall be placed on each side and the rear of the mobile CNG cascade.
(e)Portable Fire Extinguisher Requirements. Each mobile CNG motor fuel system and each mobile CNG cascade shall be provided with a portable fire extinguisher having at least a 20-B:C rating. (Renumbered City Record 9/20/2023, eff. 10/20/2023)
