DIVISION 5. SAFETY IN EMPLOYMENT 6300-9104›PART 9. TUNNEL AND MINE SAFETY 7950-8004›CHAPTER 2. Gassy and Extrahazardous Tunnels 7965-7985
§ 7983
California Labor Code · 2020-11 edition · updated 2026-10-04 · California
The main fan line used for ventilation in any tunnel or underground mine classified extrahazardous shall contain a cutoff switch capable of halting all machinery underground automatically should the fan fail or its performance fall below minimum power needed to maintain a safe atmosphere.
(Added by Stats. 1972, Ch. 1430.)
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