30 C.F.R. § 57.4104 Combustible waste.
Title 30 - Mineral Resources
(a) Waste materials, including liquids, shall not accumulate in quantities that could create a fire hazard. (b) Waste or rags containing flammable or combustible liquids that could create a fire hazard shall be placed in the following containers until disposed of properly: (1) Underground—covered metal containers. (2) On the surface—covered metal containers or equivalent containers with flame containment characteristics.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart C—Fire Prevention and Control
Prohibitions/Precautions/Housekeeping
§ 57.4104 Combustible waste.
