EndorsementsUpdated June 202511 min read

CDL Endorsements Explained: Tanker, Doubles/Triples, Passenger & Hazmat (With Pay Data)

Complete guide to CDL endorsements: H (Hazmat), N (Tanker), P (Passenger), T (Doubles/Triples), S (School Bus). Learn requirements and salary boosts for each.

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In This Guide

  1. 1.What Are CDL Endorsements?
  2. 2.H Endorsement (Hazmat)
  3. 3.N Endorsement (Tanker)
  4. 4.X Endorsement (Tanker + Hazmat)
  5. 5.P Endorsement (Passenger)
  6. 6.S Endorsement (School Bus)
  7. 7.T Endorsement (Doubles/Triples)
  8. 8.Which Endorsements Pay the Most?
  9. 9.How to Add an Endorsement
  10. 10.FAQs

CDL endorsements let you specialize and earn more. Here's a complete breakdown of each endorsement, requirements, and how much extra you can earn.

💰 Endorsements & Pay Increases

HHazmat
+$5K-$15K/yr
TSA check + test
NTanker
+$3K-$8K/yr
Written test only
XHazmat+Tanker
+$10K-$20K/yr
Both H and N
PPassenger
+$2K-$5K/yr
ELDT + test
TDoubles/Triples
+$3K-$7K/yr
Written test only

Frequently Asked Questions

Which CDL endorsement pays the most?

The X endorsement (combined Hazmat + Tanker) typically pays the most, adding $10,000-$20,000/year to your salary. Standalone Hazmat (H) adds $5,000-$15,000/year.

Do I need special training for endorsements?

Some endorsements require ELDT training (Hazmat, Passenger, School Bus). Others (Tanker, Doubles/Triples) only require passing the written test at the DMV.

Can I add endorsements after getting my CDL?

Yes! You can add endorsements at any time by passing the required tests (and completing training/background checks where applicable). No need to retake the full CDL test.

What is the X endorsement?

The X endorsement is a combination of Hazmat (H) and Tanker (N). It allows you to haul hazardous materials in tanker vehicles—the highest-paying specialty. You need both the H and N tests, plus TSA background check.

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