053-3 Wyo. Code R. § 57.13021
Current through April 27, 2019
Except where automatic shutoff valves are used, safety chains or other suitable locking devices shall be used at connections to machines of high-pressure hose lines of 3/4-inch inside diameter or larger, and between high-pressure hose lines of 3/4-inch inside diameter or larger, where a connection failure would create a hazard.
053-3 Wyo. Code R. § 57.13021