30 C.F.R. § 56.4104 Combustible waste.
Title 30 - Mineral Resources
(a) Waste materials, including liquids, shall not accumulate in quantities that could create a fire hazard. (b) Until disposed of properly, waste or rags containing flammable or combustible liquids that could create a fire hazard shall be placed in covered metal containers or other equivalent containers with flame containment characteristics.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart C—Fire Prevention and Control
Prohibitions/Precautions/Housekeeping
§ 56.4104 Combustible waste.

