If you're working toward a commercial driver's license (CDL) or adding specialized driving privileges to an existing license, endorsement fees are part of the cost. These aren't the same as your base license fee — they're separate charges tied to specific types of driving authority. How much you'll pay, when you'll pay it, and what the fee covers depends heavily on your state, the endorsement type, and whether you're adding it to a new or existing CDL.
A CDL endorsement is an authorization added to a commercial driver's license that permits the holder to operate a specific type of vehicle or transport a specific type of cargo that a standard CDL doesn't automatically cover.
The Federal Motor Carrier Safety Administration (FMCSA) defines the endorsement categories at the federal level, but states administer the testing and fee collection. That federal-state split is why the endorsements themselves are standardized — but what you pay for them isn't.
The most common CDL endorsements include:
| Endorsement Code | What It Covers |
|---|---|
| H | Hazardous materials (hazmat) |
| N | Tank vehicles |
| P | Passengers (bus drivers) |
| S | School bus |
| T | Double/triple trailers |
| X | Combined tank + hazmat |
Each endorsement requires passing a separate knowledge test — and some, like the P and S endorsements, also require a skills test. The H endorsement adds a federal layer: a TSA security threat assessment, which carries its own federal fee entirely separate from what your state DMV charges.
States typically charge endorsement fees in one of a few ways:
In most states, endorsement fees are paid at the DMV when you apply to add the endorsement to your license — generally after passing the required knowledge test. Some states collect the fee upfront; others collect it only after you've passed.
The H endorsement is a notable exception to this structure. Because it requires a TSA background check, applicants pay a separate federal fee directly to a TSA-approved fingerprinting service. That fee is set federally and goes to the TSA — not your state DMV — and it's in addition to whatever your state charges for the endorsement itself.
Endorsement fees are not uniform across states. Several factors determine what you'll owe:
State fee schedules — Each state sets its own DMV fee structure. Two neighboring states may charge significantly different amounts for the same endorsement.
Number of endorsements — Adding multiple endorsements at once may result in separate fees for each, or some states may cap the total. Adding them one at a time versus all at once can also affect the total cost.
New CDL vs. existing CDL — If you're obtaining a CDL for the first time and adding endorsements simultaneously, some states bundle those fees. Adding an endorsement to an existing CDL later is often treated as a separate transaction with its own fee.
CDL class — Whether you hold a Class A, Class B, or Class C CDL can sometimes affect endorsement eligibility and, in some states, fee schedules.
Renewal timing — If your CDL is coming up for renewal and you're adding or retaining endorsements, fees for both may apply in the same transaction.
Skills test fees — Endorsements that require a skills test (P and S, most commonly) involve a separate testing fee on top of the endorsement fee itself.
It's worth being clear about what endorsement fees at the DMV typically don't cover:
In practice, state endorsement fees can range from a small administrative charge to a more substantial per-endorsement cost — and total out-of-pocket expenses depend on how many endorsements you're seeking and what testing each one requires.
Someone adding a single N (tank vehicle) endorsement to an existing Class A CDL will generally face a knowledge test fee plus the endorsement fee — straightforward and relatively limited in cost. Someone seeking both the P and S endorsements while obtaining a new CDL for the first time will likely face CDL issuance fees, multiple knowledge test fees, skills test fees, and per-endorsement charges — across a single application process.
The total cost of endorsements also shifts over time. CDL renewal cycles — typically every four to eight years depending on the state — bring the question back around: which endorsements are you keeping, and what does your state charge to carry them forward?
No general resource can give you the exact endorsement fee for your situation — because the right answer requires knowing your state, your current CDL class, which endorsements you're pursuing, whether you're adding them to a new or existing license, and whether any skills testing is involved.
Your state's DMV fee schedule — usually available on the official DMV website — is the only source that reflects what's currently charged in your jurisdiction. Those schedules are updated periodically and can change with state legislation or administrative rulemaking.
