30 C.F.R. § 75.400 Accumulation of combustible materials.
Title 30 - Mineral Resources
Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible materials, shall be cleaned up and not be permitted to accumulate in active workings, or on diesel-powered and electric equipment therein. [61 FR 55527, Oct. 25, 1996]
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart E—Combustible Materials and Rock Dusting
§ 75.400 Accumulation of combustible materials.
