Anhydrous methylamines are shipped in pressure-type tank cars, tank trucks, and ISO tanks. Tank cars used are Department of Transportation (DOT) specification 105 and 112 with thermal protection and are available in 20, 25, and 30 thousand gallon nominal sizes. Tank trucks are DOT specification MC-331. ISO tanks are DOT specification 51.

DOT regulations limit the maximum net weight of liquefied gases transported in shipping containers carried by tank cars to a certain percentage of the weight of water that can be carried. Also, each railcar size and type has a maximum gross weight rating that may limit the net weight shipped.

The DOT Hazard Class for anhydrous methylamines is FLAMMABLE GAS. The hazard class for aqueous methylamines is FLAMMABLE LIQUID, CORROSIVE.6 UN numbers are listed below. See the MSDS for additional information.