[RetiredandRollin]

Not to be argumentative, and as far as California is concerned double towing is the least of that states problems, having said that double towing and licensing issues revert back to the state of registration. For example, if your rig is registered in Florida, as ours is, double towing is NOT permitted. Buuuut, if you drive into or through Florida, double towing, and your rig and trailer[s] are registered in another state that double towing is permitted, said law is NOT enforceable.