DOT in MI FYI
I have a 2500HD crew cab and tow my 32' fifth wheel travel trailer, my combined weight is just under 20k. I was stopped last summer by the Motor carrier division of the MI state police. He informed me that he stopped me as I have no DOT #'s on the side of my truck as is required in the State of Michigan, effective Jan 2008 for vehicles or vehicles pulling a trailer with a combined GVW or GVW of 10,000 lbs or higher.
I brought up the fact that I thought that only applies to commercial vehicles, however he said that was not the case and gave me a written warning. I see many pickups pulling lawn care trailers and different items with the #'s on there trucks, and the state issues them to you at no charge. But who wants these large black numbers on there personal vehicle that is never used for business?
I have not registered or put any on my truck after researching it, as I believe my interpretation is correct. I guess if I get stopped again and ticketed I will find out what the courts think.
Some times it is the interpretation of the law by the officer your dealing with at that moment.