Mine Safety and Health Administration (MSHA) - Code of Federal Regulations - 30 CFR 58.620
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MSHA - Title 30 CFR
30 CFR § 58.620

Drill dust control.

Holes shall be collared and drilled wet, or other effective dust control measures shall be used, when drilling non-water-soluble material. Effective dust control measures shall be used when drilling water-soluble materials.

[59 FR 8318, Feb. 18, 1994]




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