History Back     LAWS AND REGULATIONS ENFORCED BY OTHER AGENCIES LP Gas and Anhudrous Ammonia LP GAS AND ANHYDROUS AMMONIA Any company which intends to transport liquefied petroleum gas or anhydrous ammonia over Louisiana highways must obtain a permit from the: Liquified Petroleum Gas Commission P. O. Box 66209, Audubon Station Baton Rouge, Louisiana 70896 (225) 925-4895 Any driver who intends to transport liquified petroleum gas over Louisiana highways must pass an exam and receive a card of competency from the Liquifued Petroleum Gas Commission. All Vehicles transporting 3500 or more gallons of liquifued petroleum gas or anhydrous ammonia must be registered with and tagged by the Liquified Petroleum Gas Commission.