Choose the work. Plan the tests.
CDL endorsement picker
CDLP editorialPublished Updated
Find the endorsement path that fits your work goals, then start studying.
Which CDL endorsements should I get?
It depends on your cargo, vehicle, license class, age, state rules and TSA eligibility. N covers qualifying tanks; H covers hazardous materials; X combines both. T covers doubles/triples, P passenger vehicles and S school buses, with P also required. General freight or local delivery alone does not identify an endorsement. Use the picker for a study plan, then confirm your state’s requirements before paying for training or tests.
Federal baseline: 49 CFR 383.93, 383.153 and 383.123; checked .
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Your result and next step
Result cautions use federal interstate age qualifications, license vehicle groups and TSA eligibility guidance, checked November 13, 2026.
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Compare all CDL endorsements
These are endorsement tests in addition to the tests for your underlying CDL. Use the job’s actual vehicle and cargo to choose.
| Letter | What it covers | Tests required | Extra checks | Practice |
|---|---|---|---|---|
| H — Hazardous materials | Covered hazardous-material cargo, including loads requiring placards. | Knowledge test; no separate endorsement skills test. | TSA security threat assessment and fingerprints; first-time H training from a registered provider before the H knowledge test. | hazmat practice |
| N — Tank vehicle | Liquid or gas tanks meeting the federal tank-vehicle definition. | Knowledge test; no separate endorsement skills test. | No TSA assessment for N alone. Confirm tank ratings and cargo; hazardous material may require X. | tanker practice |
| X — Tank vehicle + hazardous materials | Combined N and H privileges, such as covered fuel-tanker work. | Both tank and hazardous-material knowledge tests; no separate X skills test. | TSA security threat assessment and fingerprints; first-time H training from a registered provider before the H knowledge test. | tanker practicehazmat practice |
| T — Doubles / triples | Double or triple trailer combinations where permitted. | Knowledge test; no separate endorsement skills test. | Match the combination to the license class. Trailer and route permissions vary by state. | doubles triples practice |
| P — Passenger | Passenger vehicles requiring the passenger endorsement. | Knowledge and skills tests in the appropriate vehicle. | First-time P training from a registered provider before the skills test; state and employer checks may also apply. | passenger practice |
| S — School bus | School buses; passenger (P) qualification is also required. | School bus knowledge and skills tests, plus P qualification. | First-time S training from a registered provider before the skills test. Ask the state about school bus screening. | school bus practice |
Table sources, checked November 13, 2026: 49 CFR 383.93 — endorsement tests; 49 CFR 383.153 — endorsement codes; 49 CFR 383.123 — school bus and passenger qualification; 49 CFR 380.609 — first endorsement training; 49 CFR 383.71 — training timing and TSA requirements; TSA screening.
Requirements and practice for each letter
The same cards appear in your personal result. Open a letter for its tests, checks and next step.
H — Hazardous materials
H — Hazardous materials
Covered hazardous-material cargo, including loads requiring placards.
- Tests: Knowledge test; no separate endorsement skills test.
- Extra steps: TSA security threat assessment and fingerprints; first-time H training from a registered provider before the H knowledge test.
- Work that can require it: Placarded hazardous-material freight, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
TSA lists $88.25 for new and renewing applicants, or $41 for qualifying TWIC holders in participating states. TSA says renewal is generally every five years; some states use a shorter cycle, with new fingerprints at renewal. These are TSA charges, not state test fees or school tuition. TSA fee and renewal source, checked November 13, 2026.
Interstate hazmat work uses the federal driver qualification baseline of age 21. 49 CFR 391.11, checked November 13, 2026. Your state and TSA must confirm your actual eligibility.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026.
N — Tank vehicle
N — Tank vehicle
Liquid or gas tanks meeting the federal tank-vehicle definition.
- Tests: Knowledge test; no separate endorsement skills test.
- Extra steps: No TSA assessment for N alone. Confirm tank ratings and cargo; hazardous material may require X.
- Work that can require it: Nonhazardous liquid or gas tank work, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026.
X — Tank vehicle + hazardous materials
X — Tank vehicle + hazardous materials
Combined N and H privileges, such as covered fuel-tanker work.
- Tests: Both tank and hazardous-material knowledge tests; no separate X skills test.
- Extra steps: TSA security threat assessment and fingerprints; first-time H training from a registered provider before the H knowledge test.
- Work that can require it: Covered fuel and hazardous chemical tank work, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
TSA lists $88.25 for new and renewing applicants, or $41 for qualifying TWIC holders in participating states. TSA says renewal is generally every five years; some states use a shorter cycle, with new fingerprints at renewal. These are TSA charges, not state test fees or school tuition. TSA fee and renewal source, checked November 13, 2026.
Interstate hazmat work uses the federal driver qualification baseline of age 21. 49 CFR 391.11, checked November 13, 2026. Your state and TSA must confirm your actual eligibility.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026.
T — Doubles / triples
T — Doubles / triples
Double or triple trailer combinations where permitted.
- Tests: Knowledge test; no separate endorsement skills test.
- Extra steps: Match the combination to the license class. Trailer and route permissions vary by state.
- Work that can require it: Double or triple trailer freight, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026.
P — Passenger
P — Passenger
Passenger vehicles requiring the passenger endorsement.
- Tests: Knowledge and skills tests in the appropriate vehicle.
- Extra steps: First-time P training from a registered provider before the skills test; state and employer checks may also apply.
- Work that can require it: Passenger bus work, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026.
S — School bus
S — School bus
School buses; passenger (P) qualification is also required.
- Tests: School bus knowledge and skills tests, plus P qualification.
- Extra steps: First-time S training from a registered provider before the skills test. Ask the state about school bus screening.
- Work that can require it: School bus work, when the vehicle and cargo meet the federal definitions.
- Pay: pay premium not published by an official source. This tool has no reliable official endorsement-specific premium; ask the employer for the actual role’s pay.
Federal endorsement tests, cargo definitions, first-time H, P and S training and training before the applicable test; checked November 13, 2026. S requires P qualification; checked November 13, 2026.
Confirm the state steps before paying
- Read your official state CDL manual for test booking, endorsement fees, restrictions and school bus screening. No state fee quote is available in this picker.
- For H or X, TSA directs applicants in Florida, Kentucky, Maryland, New York, Pennsylvania, Texas, Virginia and Wisconsin to their state licensing office for application and fingerprinting information. Other applicants use TSA’s enrollment process. TSA state instructions, checked November 13, 2026.
- Use the state practice and official-source index, including the Texas test plan and New York test plan. Each state page shows its own source-check date.
- Confirm the vehicle’s license class, then check registered ELDT training requirements. Practice questions do not replace training or the official tests.
Why a tank does not always mean X
N depends on the tank-vehicle definition: individual tank capacity over 119 gallons and aggregate capacity of at least 1,000 gallons, with a specific empty storage-container exception. H depends on covered hazardous material; X combines both privileges. 49 CFR 383.5 and 383.153, checked November 13, 2026.
A nonhazardous qualifying tank calls for N. A covered hazardous load in a qualifying tank calls for X. The combined fuel / liquid checkbox therefore shows conditional options unless you also select hazardous materials.
Does choosing “yes” approve me for hazmat?
No. TSA checks eligibility, including immigration status and disqualifying offenses; the state issues the endorsement. Read the official TSA eligibility guidance, checked November 13, 2026, before paying.
All sources and scope
Federal baseline checked . State issuance, employer hiring, route permissions and individual TSA decisions remain outside this picker’s result.
- 49 CFR 383.93 — endorsement tests — checked November 13, 2026.
- 49 CFR 383.153 — endorsement codes — checked November 13, 2026.
- 49 CFR 383.123 — school bus and passenger qualification — checked November 13, 2026.
- 49 CFR 380.609 — first endorsement training — checked November 13, 2026.
- 49 CFR 383.71 — training timing and TSA requirements — checked November 13, 2026.
- 49 CFR 391.11 — interstate driver qualifications — checked November 13, 2026.
- 49 CFR 383.91 — vehicle groups — checked November 13, 2026.
- 49 CFR 383.5 — tank and hazardous-material definitions — checked November 13, 2026.
- TSA — HAZMAT Endorsement, fees and renewal — checked November 13, 2026.
Pay premium not published by an official source: this picker provides no numeric endorsement pay comparison or earnings promise.
Turn your plan into a next step
- Start the matching free practice test above.
- Confirm state testing and training rules using your manual.
- Get your state checklist and updates about school and carrier matching below.
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