Chapter 6. Commercial Driver's License Information Endorsements An endorsement is a designation on your CDL that indicates that you're qualified to operate specific kinds of vehicles or to use them in specific ways. For example, you need an endorsement to carry passengers in a commercial vehicle, and you also need an endorsement to drive a vehicle carrying hazardous materials. Once you've earned an endorsement, the letter that represents it will be printed on the front of your CDL, and a description on the back. 03/18 Endorsement A Endorsement (L restriction Removal) P Endorsement H Endorsement Displays on Driver's License as Does not print on driver's license Passenger Hazardous Materials Description Allows the customer to operate a commercial mv with airbrakes. The A endorsement is implied in the absence of an L Restriction Allows the customer to carry passengers Allows the customer to carry hazardous materials or waste Testing Requirements Written exam and road test Written exam and road test Written exam and Transportation Security N Endorsement X Endorsement Tank Tank/Hazmat Allows the customer to haul liquids in bulk This is a combination of the N End. and the H. End. If a customer has both, their CDL will display the X End. T Endorsement Doubles/Triples Allows customer to pull double or triple trailers. This endorsement is only available for Class A driver's licenses. However, it is not a requirement for getting a Class A driver's license. S Endorsement School Bus Allows the customer to transport students in a full-sized school bus Written exam and road test Administration threat assessment* Written exam N/A Written Test