Cal. Code Regs. tit. 18, § 1305
A fuel tank includes a separate compartment of a cargo tank used as a fuel tank and any auxiliary tank or receptacle of any kind from which fuel is supplied for the propulsion of the vehicle whether or not such tank or receptacle is directly connected to the fuel supply line of the vehicle.
Note: Authority cited: Sections 9251 and 8612, Revenue and Taxation Code.
1. New section filed 8-23-57 as an emergency; designated effective 10-1-57 (Register 57, No. 13).