Colorado

As a driver you are required by law to inspect the equipment before departure, this includes a few checks on the braking system including getting under the rig and physically adjusting the brakes periodically, like daily at least. Even company drivers must do this though many skip much of the inspection if they think "the shop" is really up on all maintenance. Why? Because as the operator, you are responsible for knowing that your equipment is safe and taking it out of service when it needs repairs.

And as mentioned by another driver above, the dispatch will fuck with you if you red tag a vehicle that they don't want to deal with. It's also how the company gets rid of drivers, send them out in a rig that's going to fuck up and blame the driver throughout the whole mess. Been there done that, as a woman in the trade, I saw that attempt made more often than you'd like to think.