LOL, who cares if he's an arrogant prick? He's right. He's the only member on this site that gives consistently correct answers about CDL and DOT requirements. State Troopers and Trailer Dealers are not reliable sources of DOT information. State Troopers think they know all the DOT laws and the Trailer Dealers blow smoke. And don't bother calling the DOT office because you can't get a straight answer from a bureaucrat. You just have to read the laws yourself and/or talk to somebody who knows the laws better than yourself.