Whenever an access shaft is used as the normal means of entrance or exit to an underground mine or tunnel, it shall be constructed of fireproof material or fireproofed by chemical or other means.

(Added by Stats. 1972, Ch. 1430.)

Terms Used In California Labor Code 7964

  • Access shaft: means a vertical shaft used as a regular means of worker access to underground mines and tunnels under construction, renovation, or demolition. See California Labor Code 7951
  • Mine: means any excavation or opening above or below ground used for removal of ore, minerals, gravel, sand, rock, or other materials intended for manufacturing or sale. See California Labor Code 7951
  • Tunnel: means an underground passageway, excavated by men and equipment working below the earth's surface, that provides a subterranean route along which men, equipment, or substances can move. See California Labor Code 7951