(a) Diesel-powered equipment in underground coal mines may be refueled only from safety cans, from tanks on diesel fuel transportation units, or from stationary tanks.
(b) Fuel that is dispensed from other than safety cans must be dispensed by means of-
(c) Diesel fuel must not be dispensed using compressed gas.
(d) Diesel fuel must not be dispensed to the fuel tank of diesel-powered equipment while the equipment engine is running.
(e) Powered pumps shall be shut off when fuel is not being dispensed.
053-4 Wyo. Code R. § 75.1905