Labor Code § 7972

CHAPTER 2. Gassy and Extrahazardous Tunnels

Current as of September 28, 2026Lab. Code, § 7972Official source ↗

Added by Stats. 1972, Ch. 1430.

If the level of gas in any tunnel or underground mine reaches 20 percent of its lower explosive limit at any time all men shall be removed, the division notified immediately by telephone or telegram, and no one shall reenter the tunnel or underground mine until approval is given by the division.