Thanks for the links Plowboy! Here is one I have in my Favorites; may lead the same places.
http://www.dor.state.ne.us/intermodal/motr-carriers.htm
I have the phone number of NE trooper I'm supposed to call when I get ready to haul sugar beets; trouble is that number is in an e-mail on a hard drive I need to back up immediately when starting as it is about to crash :-(