30 C.F.R. § 56.4130 Electric substations and liquid storage facilities.
Title 30 - Mineral Resources
(a) If a hazard to persons could be created, no combustible materials shall be stored or allowed to accumulate within 25 feet of the following: (1) Electric substations. (2) Unburied, flammable or combustible liquid storage tanks. (3) Any group of containers used for storage of more than 60 gallons of flammable or combustible liquids. (b) The area within the 25-foot perimeter shall be kept free of dry vegetation.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart C—Fire Prevention and Control
Prohibitions/Precautions/Housekeeping
§ 56.4130 Electric substations and liquid storage facilities.