CDL- Not required for the following
less that 26K
less than 26K towing less than 10K


Now where the states can get you is a a/c service truck like yours with a buisnesses name on the side meets the requirements of the cdl because of the freon hauled inside. It is a catch 22, How ever My guess(and only a guess) is that as ong as it is blank on the side and has a personal registration on it you should not be bothered.

I know a couple of people that have bought over the road tractors to use as tow vehicle for thier massive 5th wheels. What they did was put private coach not for hire on the side of it.

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86 300SDL. 250,xxx on #14 Head. One eye always on temp gauge.. Cruising towards 300K