Montana's CDL manual and DMV CDL Practice Tests

for all endorsements

Montana's CDL Manual

Commercial Driver Handbook

CDL Classes in Montana Montana has two types of commercial driver’s licenses:

  • Type 1 (interstate) — allows you to drive a commercial motor vehicle (CMV) for interstate commerce. This means your job requires you to cross state lines.
  • Type 2 (intrastate) — allows you to operate a CMV for commerce within Montana only.
  • Under each type, you can choose between three classes:
  • Class A CDL
  • Class B CDL
  • Class C CDL

Remember, the CDL class you hold affects the kind of CMVs you can operate, so choosing the appropriate one is vital. CDL Endorsements in Montana Knowing which CDL you need is one thing — figuring out whether or not you need endorsements is another. Some specific commercial vehicles or loads require additional training and testing. An endorsement on your CDL will show that you got that and are therefore qualified to drive that CMV or carry that load. The following endorsements are available in Montana:

  • T endorsement – allows you to drive a double/triple trailer
  • P endorsement – allows you to carry passengers
  • S endorsement – allows you to drive a school bus
  • N endorsement – allows you to drive a tank
  • H endorsement – allows you to carry hazardous materials

NOTE: You’ll need to complete a security background for an H endorsement. CDL Requirements in Montana Okay, so you now know what CDL class you need and whether or not you should get an endorsement. Now, let’s ensure you meet all the qualifications before we jump into the steps to getting your CDL in Montana. We’ve come up with a comprehensive list — see how many you can check off:

  • Must meet the age requirement(18 to drive intrastate,21 to drive interstate)
  • Must have a Montana-issued Class D driver’s license
  • Must have complete driving privileges at the time of application
  • Must be compliant with the Federal Motor Carrier Safety Regulations’ health requirements
  • Must have U.S. citizenship or are legally permitted to work in the country
  • Must be a Montana resident
  • Must demonstrate proficiency in English

If you check everything, then you can start working on your CDL.

DMV CDL Practice Tests

General Knowledge

The general knowledge test is the first of several tests that you will have to complete in order to get your CDL. The questions cover general information about commercial vehicles, driving, and vehicle inspections. The test has a total of 50 questions, and requires at least 40 correct answers to pass.

Air Brakes

You must have an Air brake endorsement on your driver's license to drive a vehicle equipped with an air brake system. This test will test your knowledge of the function, parts, and braking distance of air brakes. The test will consist of 25 questions, and at least 20 correct answers are needed to pass.


The combination endorsement allows you to drive a vehicle with a power unit and one trailer. This test will cover the "ins and outs" of operating articulated vehicles. The exam consists of 25 questions, and requires at least 20 correct to pass.

Hazardous Material

The Hazardous Material endorsement allows the driver to operate a vehicle containing items such as poisons, explosives, flammables, etc. You will also have to pass the TSA Hazardous Material Threat Assessment to get this endorsement. There are 30 questions, 24 correct required to pass.


The Tanker endorsement allows the driver to operate a vehicle weighing more than 26,000 pounds designed to transport any liquid or gaseous material within a tank that is permanently or temporarily attached to the vehicle. There are 20 questions, 16 correct required to pass.

Doubles / Triples

The Doubles/Triples endorsement is required for drivers to pull 2 trailers (doubles) or 3 trailers (triples) connected to a single power unit. There are 20 questions on this test, and 16 correct answers are required to pass.


Bus drivers must have a commercial driver's license with a passenger endorsement in order to operate a vehicle which seats 16 or more, including the driver. There are 20 questions on this test, and 16 correct answers are required to pass.

School Bus

School Bus Endorsement is required for any driver who operates a school bus. After the permit tests the training can be only completed by a local school district. There are 20 questions on this test, and 16 correct answers are required to pass.

Pre Trip Inspection

The Pre-Trip exam is an oral exam where you are expected to check the vehicle parts to insure it is safe for road use. The amount of parts you need to check increase with the size of the vehicle, and by type of vehicle.