Vapor check valves shall be provided in the vapor return line from each dispensing outlet to prevent the discharge of vapors when the hose nozzle valve is in its normal non-dispensing position. Such vapor check valves shall be tested in accordance with applicable provisions of this subchapter.
Cal. Code Regs. Tit. 19, § 1918.31
Note: Authority cited: Section 41956, Health and Safety Code. Reference: Sections 41956 and 41958, Health and Safety Code.