Title 30

SECTION 77.1909

77.1909 Explosives and blasting; use of permissible explosives and shot-firing units.

§ 77.1909 Explosives and blasting; use of permissible explosives and shot-firing units.

Except as provided in § 77.1909-1, only permissible explosives and permissible shot-firing units shall be used in sinking shafts and slopes.

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