California Code of Regulations › Title 13 - Motor Vehicles › Division 2 - Department of the California Highway Patrol › Chapter 4 - Special Equipment › Article 2 - Compressed and Liquefied Gas Fuel Systems › Section 936 - Installation

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The installation of liquefied petroleum gas, compressed
					 natural gas, or liquefied natural gas fuel systems on motor vehicles equipped
					 with gaseous fuel systems certified or approved by the State Air Resources
					 Board shall be in accordance with the following requirements:
(a) Driver, Passenger, and Luggage
				  Compartments. Fuel supply containers on buses shall not be located in or above
				  the passenger compartment. Fuel supply containers on vehicles other than buses
				  shall be installed and fitted so that no gas from fueling and gaging operations
				  or from relief valves can be released inside the driver, passenger, or luggage
				  compartments.
(b) Fuel Supply
				  Containers. Fuel supply containers shall meet all appropriate requirements of
				  the ASME code, the DOT regulations, or the regulations contained in this
				  article and shall be marked in accordance with Sections
				  933,
				  934, and
				  935 of this article. Cargo
				  containers mounted on a motor vehicle, but not on a trailer or semitrailer, may
				  be used to supply fuel for the propulsion of the vehicle when the container
				  meets the cargo container requirements of Unfired Pressure Vessel Safety
				  Orders, Division of Industrial Safety, Title 8, California Code of Regulations.
				  Fuel supply containers other than cargo containers shall comply with the
				  following requirements:
(1) Each container and
				  container cradle shall be mounted in protected locations to minimize damage
				  from collision.
(2) To prevent
				  damage from road hazards, slippage, loosening, or rotation, each container or
				  cradle shall be secured to the vehicle body, bed, or frame by either of the
				  following means:
(A) By attaching bolts not
				  less than 7/16 in. in diameter that meet SAE Standard J429 for Grade 5 threaded
				  fasteners in the 1965 or later edition of the SAE Handbook and self-locking
				  nuts to at least four securement points and, where bolts pierce body metal but
				  not the frame, by reinforcing both sides of each securement point with metal
				  plates at least 1/8 in. thick and 7 sq. in. in area; or
(B) By using other means capable of
				  withstanding in any direction a static force of eight times the weight of the
				  fully loaded container.
(3) Each container in a cradle shall be
				  secured to its cradle by means capable of withstanding in any direction a
				  static force of eight times the weight of the fully loaded container.
(4) No portion of the container or container
				  valves in communication with the liquid or vapor shall be located behind the
				  rear frame crossmember of the vehicle.
(5) The weight of the container shall not in
				  any way be supported by outlets, valves, manifold, or other fuel
				  connections.
(6) No part of the
				  container shall be field welded. Only saddle plates, brackets, or other
				  nonpressure parts that were provided and installed by the manufacturer of the
				  container may be field welded.
(7)
				  No container shall be repaired until the contemplated repair has been
				  authorized by a certified inspector. DOT containers shall be repaired under DOT
				  regulations and control. The replacement of valves, fittings, and accessories
				  intended for the same purpose is not considered a repair.
(8) Containers located less than 8 in. from
				  the engine or exhaust system shall be shielded against direct
				  heat.