Their CDL (any quantity of hazmat being transported for which placards must be displayed requires a CDL, regardless of the vehicle's GVWR), bills of lading, logbook (on demand and if applicable)... really the same as any other commercial driver has to present, though when asked for the bill of lading, they'd better be in immediate reach of the driver before being handed over to the officer.
A CDL with a hazmat endorsement.
If you're hauling hazmat, missing hazmat signs are a federal offense. If you're NOT hauling hazmat, you don't even need the placard frames.
No. If you're driving for a company which expects you to sleep in the sleeper berth, hauling hazmat doesn't change any of that. If the driver wishes to sleep in a hotel/motel, they do it out-of-pocket.
No, unless it's hauling a quantity of hazardous materials which requires a hazmat endorsement.
Not unless you're hauling something such as contaminated soil, which requires a hazmat endorsement.
If you are a military service member in the course of their duties, no, but you must have gone through hazmat handler certification. A civilian contractor or DOD civilian would need a CDL and hazmat endorsement.
Only if it's hauling hazmat or is a bus designed to transport more than 15 passengers (including the driver). Air brakes have absolutely nothing to do with whether or not a vehicle requires a CDL.
No, unless you're hauling something which requires a hazmat endorsement, such as contaminated soil.
An endorsement permitting the driver to transport hazardous materials.
Yes. However, your chances of finding employment as a CDL driver with a felony conviction are slim, and you won't be eligible to receive a Hazmat endorsement.
It means your Hazmat Endorsment expires before your CDL does.
A 1/4 ton pickup. Vehicles carrying any quantity of hazmat which requires placards to be displayed require the driver to have a CDL and hazmat endorsement.
Depends on what exactly their job is. Not all CDL jobs are equal.