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Arizona Administrative Code (Last Updated: November 17, 2016) |
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Title 11. MINES |
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Chapter 1. STATE MINE INSPECTOR |
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Article 18. GASSY MINES |
Section R11-1-1836. Line brattice or other suitable devices
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Line brattice or other suitable devices shall be installed from the last open crosscut to a point near the face to assure positive air flow to the face of every active underground working place, unless the Inspector or his authorized representative permits an exception to this requirement.