Furthermore, CDL holders are rewarded for obtaining HazMat and Tanker endorsements. "Obtaining your CDL, and adding the HazMat and Tanker endorsements, is one of the most beneficial car.

So, if the aggregate capacity of the IBCs on a truck is greater than 1,000 gallons it would meet our definition of a tank vehicle and the driver would be required to have the tank endorsement." ...

FMCSA officially adopted rules that have been on the books since 2003 and 2005, respectively, that require TSA background checks on drivers obtaining or renewing a hazmat CDL endorsement.