Which CDL endorsements can raise your pay?

Updated October 2026

Endorsements qualify you for jobs that fewer drivers can do, which often means better pay or better schedules.

Hazmat (H)

Opens fuel, chemical and other placarded freight. Requires a TSA background check and ELDT theory before the knowledge test.

Tank (N) and the X endorsement

Tank opens liquid bulk jobs. X combines tank and hazmat, which many fuel haulers require.

Doubles and triples (T)

Required for many LTL linehaul jobs.

Passenger (P) and school bus (S)

Open bus driving jobs, often with steady, local schedules.

Start studying

Each endorsement has its own knowledge test. Practice free at CDLPermits.com.