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SESK: Stuff Everyone Should Know · sesk.info/cdl-clp-endorsements-allowed

Which endorsements are the only ones allowed on a commercial learner's permit?

Passenger (P), School bus (S) and Tank vehicle (N).

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  1. H, T and X
  2. P, S and T
  3. P, S and N ✔

Why: Only P, S and N can go on a CLP, and each needs its knowledge test first. Hazmat (H), doubles/triples (T) and X are not allowed on a permit.

Huh, didn't know that: A CLP holder with P or S still may not carry real passengers, only the CDL holder riding along, test examiners, other trainees, and federal or state auditors and inspectors.

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References

Answer: P, S and N. Only P, S and N can go on a CLP, and each needs its knowledge test first. Hazmat (H), doubles/triples (T) and X are not allowed on a permit.

  1. 49 CFR 383.93 Endorsements (eCFR) www.ecfr.gov/current/title-49/section-383.93
    The only endorsements allowed on a CLP are the following: (i) Passenger (P); (ii) School bus (S); and (iii) Tank vehicle (N).
    Checked 2026-10-10.

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Cars & DrivingWhich CDL endorsement letter lets you pull double or triple trailers?Cars & DrivingWhich CDL endorsement letter is for tank vehicles?Cars & DrivingWhat does the X endorsement on a CDL stand for?

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