Most crews find out at the roadside
An officer pulls over a pickup and trailer. There is no inspection sticker, the driver has no medical card, and the breakaway cable is hanging loose. The truck sits where it is until that is fixed, and the job waits.
Then it gets worse. The stop goes on the company's federal record, and a company with a record gets stopped again. Bigger outfits hire a fleet manager at this point. DOT Trades does that job for a small one.

