Montana CDL Requirements: Classes, Training, and Testing

To get a commercial driver’s license in Montana, you must meet the age and medical standards, complete federally required entry-level training if it’s your first CDL, pass written knowledge tests to earn a Commercial Learner’s Permit, hold that permit for at least 14 days, and then pass a three-part skills exam at a Motor Vehicle Division (MVD) exam station. Montana CDL requirements follow the federal framework in 49 CFR Part 383, with a few state-specific wrinkles around fees, intrastate age limits, and the Drug and Alcohol Clearinghouse check that MVD runs on every application.¹

Who Qualifies

Montana issues two kinds of CDL. An intrastate CDL lets you drive commercially only within Montana and requires you to be at least 18. An interstate CDL lets you cross state lines and requires you to be at least 21. The 21 minimum also applies to anyone hauling placarded hazardous materials, regardless of where they drive.²

You also need to be a Montana resident with a valid Montana driver’s license, and your record cannot show an active suspension, revocation, or cancellation in any state. When you apply, you self-certify into one of four driving categories. Most applicants fall into non-excepted interstate (crossing state lines, full federal medical qualifications apply) or non-excepted intrastate (Montana only, state medical standards apply). Picking the wrong category can invalidate your license later if your actual driving doesn’t match what you certified.²

Since October 2024, MVD queries the Federal Drug and Alcohol Clearinghouse on every CDL and CLP application. An active prohibition in the Clearinghouse means an outright denial.¹

Choosing the Right Class

Three license classes cover the full range of commercial vehicles, and the right one depends on weight and what you’re moving.³

Class A covers any combination of vehicles with a gross combination weight rating of 26,001 pounds or more where the towed unit is over 10,000 pounds. Tractor-trailers and heavy hauling setups fit here. A Class A holder can also operate Class B and C vehicles.
Class B covers a single vehicle over 26,000 pounds GVWR, or one towing a trailer of 10,000 pounds or less. Dump trucks, large buses, and straight trucks fall in this group. A Class B holder can also operate Class C vehicles.
Class C covers a single vehicle under 26,001 pounds that either carries placarded hazardous materials or transports 16 or more passengers including the driver.

Endorsements

Endorsements expand what the base license lets you do, and each one requires passing an extra written test:¹

H — Hazardous Materials (also requires a TSA background check)
N — Tank Vehicle (liquids or gases in a tank of 1,000 gallons or more)
P — Passenger (vehicles designed to carry 16 or more people)
S — School Bus (requires P as well)
T — Double or Triple Trailers
X — Combined Tank and Hazmat

Adding H, P, or S for the first time also triggers the federal entry-level training requirement described below.

Restrictions to Avoid

The vehicle you test in determines what you’re allowed to drive after you pass. Test in an automatic transmission, and your license carries an E restriction limiting you to automatics. Test without full air brakes, and you’ll end up with an L or Z restriction barring you from air brake-equipped vehicles. Most trucking jobs assume manual transmissions and full air brakes, so these restrictions close doors. If you have a choice, test in a truck with both. Removing a restriction later means retaking the skills test.

Documents to Bring

Montana requires two forms of identity proof: either two primary documents, or one primary and one secondary. Primary documents include a certified U.S. birth certificate, a valid U.S. passport or passport card, an unexpired military ID with photo and date of birth, a certificate of naturalization, or a current driver’s license from another U.S. or Canadian jurisdiction. Your Social Security number must also be on file.⁴

Every CDL applicant needs a Medical Examiner’s Certificate (Form MCSA-5876) proving they meet FMCSA’s physical standards. The exam must be done by a provider listed on FMCSA’s National Registry of Certified Medical Examiners. Your regular doctor cannot issue the certificate unless they’re on that registry. The certificate is typically valid for up to two years, though certain health conditions shorten it.⁵

Entry-Level Driver Training

If you’re applying for a Class A or Class B CDL for the first time, upgrading from Class B to Class A, or adding a P, S, or H endorsement for the first time, federal law requires you to complete Entry-Level Driver Training (ELDT) before you can take the skills test. The rule took effect February 7, 2022.⁶

Training has two parts: theory instruction and behind-the-wheel training. The hazmat endorsement only requires the theory portion. Your training provider must be on FMCSA’s Training Provider Registry, and they must certify your completion electronically within two business days. Until that certification shows up in the registry, MVD will not schedule your test.⁷

ELDT is not retroactive. Anyone who already held the relevant CDL or endorsement before February 7, 2022 is exempt. Active military, firefighters, emergency response drivers, farmers operating covered farm vehicles, and some qualifying veterans are also exempt.

The Testing Path

You apply in person at any Montana driver license exam station. Bring your documents, your Medical Examiner’s Certificate, your ELDT completion (where required), and payment.

Your first visit is for the written knowledge tests. You take the general knowledge test for the class you want, plus a separate test for each endorsement. Pass, and MVD issues you a Commercial Learner’s Permit. The CLP lets you practice driving a commercial vehicle on public roads, but only with a valid CDL holder seated beside you who holds the correct class for that vehicle.

Federal law requires a minimum 14-day wait between the day your CLP is issued and the day you can take the skills test. There are no shortcuts around that waiting period. The CLP itself is valid for up to one year; let it expire before you pass the skills test, and you’ll have to reapply and retake the knowledge tests.⁸

The Three-Part Skills Test

The skills exam runs in a fixed order:

Pre-trip inspection. You walk around the vehicle and explain each component’s condition and function to the examiner. Missing a critical safety item here can end the test before the engine starts.
Basic vehicle control. In a controlled area, you perform maneuvers such as straight-line backing, offset backing, and parallel parking or alley docking depending on the vehicle. Precision counts more than speed.
Road test. You drive in real traffic, handling turns, lane changes, and highway merges while the examiner evaluates your control.

The vehicle must match the class and endorsements you want. Pass all three, and the examiner authorizes MVD to issue your full CDL.

Fees

Montana CDL fees depend on your age and license type. For most applicants ages 21 through 67, an intrastate CDL is $35.54 and an interstate CDL is $41.72. Adding REAL ID compliance raises those to $61.29 and $67.47. The fee covers both the CLP and the eventual CDL card. A replacement card is $10.30.⁹

Hazmat: A Separate Track

The hazardous materials endorsement adds a federal security layer that nothing else requires. Before Montana will issue or renew H or X, you must pass a TSA fingerprint-based security threat assessment. Driver exam stations don’t handle this. You apply through the TSA HAZPRINT program online or by calling the TSA Driver Service Center at 855-347-8371, then visit a TSA-contracted fingerprinting location.¹

The TSA fee is $85.25 as of January 2025, or $41 if you hold a valid TWIC card that Montana accepts in lieu of a separate assessment. The background check typically takes 30 to 40 days. Once MVD receives your clearance, you still have to pass the hazmat knowledge test at an exam station. If you’re renewing a CDL that carries hazmat, Montana requires you to submit the TSA application at least 60 days before your license expires.¹⁰¹¹

Rules That Can Cost You the License

Two numbers are worth knowing before you ever drive commercially. Montana’s regular DUI threshold is 0.08 BAC. For a CDL holder operating a commercial vehicle, it’s 0.04. A couple of drinks at dinner can end a commercial driving career if you get behind the wheel of a truck afterward.

A first major offense while holding a CDL triggers a one-year disqualification, which jumps to three years if the offense happened while hauling placarded hazmat. A second major offense from a separate incident is a lifetime disqualification, with possible reinstatement after a minimum of 10 years.¹² Major offenses include DUI, operating a commercial vehicle at 0.04 BAC or higher, refusing an implied consent test, leaving the scene of an accident involving injury or death, using a motor vehicle to commit a felony, driving commercially on an already-suspended CDL, and causing a fatality through negligent operation of a commercial vehicle.

One category is permanent with no path back: using a commercial vehicle to manufacture, distribute, or dispense controlled substances, or in connection with human trafficking.¹³

Renewal Basics

You can renew your Montana CDL up to six months before it expires, online, in person, or by mail in limited circumstances. Online renewal requires a current Medical Examiner’s Certificate on file with FMCSA’s national registry and doesn’t allow adding endorsements. If your CDL carries hazmat, you cannot renew by mail at all and must redo the TSA check and the hazmat knowledge test.¹¹

If your CDL expires, you have a 365-day grace period before MVD treats you as a brand-new applicant who has to retake every test. During that grace period your license is not valid for driving. The window only spares you the full reapplication.

When You Don’t Need a CDL at All

Many Montana farm and ranch operators drive large vehicles without a CDL under the covered farm vehicle (CFV) exemption. A CFV qualifies if it’s operated by the farm or ranch owner, a family member, or an employee; used to move agricultural commodities, livestock, machinery, or supplies to or from the operation; not used for for-hire motor carrier work; not carrying placarded hazmat; and displays a special farm plate or other state designation.¹⁴

A CFV at 26,000 pounds GVWR or less can travel anywhere in the country without a CDL. Above 26,000 pounds, the exemption only covers travel within Montana or within 150 air miles of the farm or ranch, even if that radius crosses state lines. CFV drivers are also exempt from ELDT. If your driving doesn’t fit all five conditions, assume the standard CDL rules apply.

1
Montana Motor Vehicle Division. Commercial Driver License
2
eCFR. 49 CFR 383.71 – Driver Application and Certification Procedures
3
eCFR. 49 CFR 383.91 – Commercial Motor Vehicle Groups
4
Montana Motor Vehicle Division. Required Documents for Driver Licenses / IDs
5
Federal Motor Carrier Safety Administration. Medical Examiners Certificate (MEC), Form MCSA-5876
6
Federal Motor Carrier Safety Administration. Entry-Level Driver Training (ELDT)
7
Training Provider Registry. Training Provider Registry
8
eCFR. 49 CFR 383.25 – Commercial Learner’s Permit
9
Montana Motor Vehicle Division. Licensing Fees
10
Transportation Security Administration. HAZMAT Endorsement
11
Montana Motor Vehicle Division. Renewing Your CDL
12
Montana Code Annotated. Montana Code 61-8-802 – Suspension of Commercial Drivers License – Disqualification
13
eCFR. 49 CFR 383.51 – Disqualification of Drivers
14
Montana State Legislature. CFV Exemptions and Reciprocity Compendium