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Code · California · Labor Code

§ 7963

61 words·~1 min read·/ca/labor-code/7963

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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.
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

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