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WAC 296-52-67225
Combustible gases or dusts.
Explosives cannot be loaded or used underground where combustible gases or combustible dusts exist unless approved by the Mine Safety and Health Administration (MSHA).
[Statutory Authority: RCW
49.17.010
, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-67225, filed 1/23/02, effective 3/1/02.]