Labor Code - LAB
DIVISION 5. SAFETY IN EMPLOYMENT [6300 - 9254]
( Division 5 enacted by Stats. 1937, Ch. 90. ) PART 9. TUNNEL AND MINE SAFETY [7950 - 8004]
( Part 9 added by Stats. 1972, Ch. 1430. ) CHAPTER 2. Gassy and Extrahazardous Tunnels [7965 - 7985]
( Chapter 2 added by Stats. 1972, Ch. 1430. ) 7983.
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.)