By regulation it has to be certified empty! The moving company link is because they do it! I don't sleep much that's why I am on this stupid computer at all hours! I was born into the trucking business, brew up with it, drove truck in collage, and still have many friends and some clients in it! My father drove diesel until he was 81! I have hauled chemicals between LA and Oakland in the 70's! I have been involved in the process of "Certifying a tank empty" and it is a joke, but once certified it is no longer a gas bottle and can go common carrier including bed bug haulers!