Adding CDL Endorsements

CDL applications are required to take and pass additional tests to operate specific types of commercial vehicles.  

The following tests are required when adding endorsements to your Commercial License:

Note: The P, S, and N endorsement exams can be taken with the Commercial learner’s permit test.  The T, H, and X endorsement exams require applicants to have a valid Commercial Driver's License.

  • P - Passenger Endorsement

    • Requires Knowledge and Skills Tests
    • Valid for CDL Class A, B, C
  • S - School Bus Endorsement

    • Requires Knowledge and Skills Tests
    • Valid for CDL Class A, B, C
    • See School Bus Endorsement for more information.
  • T - Double/Triple Trailer Endorsement

    • Requires Knowledge Test only
    • Valid for CDL Class A
    • Not eligible for a CLP. The applicant must have a valid Commercial Driver’s License.
  • N - Tanker Endorsement

    • Requires Knowledge Test only
    • Valid for CDL Class A, B
  • H - Hazmat Endorsement

    • Requires Knowledge Test only
    • Valid for CDL Class A, B, C
    • Pass TSA Background Check
    • Fingerprints are required for 1st-time issuance as well as renewals.
    • See TWIC®, HME and the TSA Pre✓® application program for more information.
    • Not eligible for a CLP. The applicant must have a valid Commercial Driver’s License.
  • X - Hazmat & Tanker Combination

    • Requires Knowledge Test Only
    • Valid for CDL Class A, B, C
    • Not eligible for a CLP. The applicant must have a valid Commercial Driver’s License.