Very interesting discussion.
I ran a business for 25 years and had lettered trucks including a bucket truck that weighs 13,500 empty (of cargo) which was also towing trailers with machinery or product.
I operated in New York state and never applied for a dot number.
I was pulled over a few times by NYSP but the issue of weight or license never came up. I also have a tow truck endorsement.
Is this an issue mainly for interstate operators?
Thanks in advance,