DIVISION 5. SAFETY IN EMPLOYMENT 6300-9104›PART 9. TUNNEL AND MINE SAFETY 7950-8004›CHAPTER 1. Tunnels and Mines 7950-7964.5

§ 7963

California Labor Code · 2020-11 edition · updated 2026-10-04 · California

All underground mines and tunnels with more than five men underground at one time shall have telephone or other communication systems to the surface in operation at any time there are persons underground. Such systems shall be installed in such a manner that destruction or removal of one phone or communication device does not make other phones or communication devices inoperative.

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

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California Labor Code

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