California Labor Code
§ 7983
LAB § 7983Div. 5 · Part 9 · Ch. 2
Statute text
View on leginfo.ca.govThe 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.
Legislative history
Added by Stats. 1972, Ch. 1430.