Valve gears on steam engines shall be so arranged, or other provisions made, that, in the event of the load being removed, the engine will stop if the governor fails to act. (A broken governor belt stop will be considered sufficient for slide or four-valve engines.)
Cal. Code Regs. Tit. 8, § 3512
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.