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FREE MO CDL INFO | DMV Locations | Fees Forms | FAQs | Missouri CDL Requirements

Find official Missouri CDL test requirements to get your MO CDL - FREE information - FAST and EFFICIENT.

Jump to official Missouri CDL website information.

Missouri CDL Info | MO CDL Requirements

Missouri CDL Learner Permit Training Program
Missouri CDL Practice
Test Prep
MO CDL  School Bus

Missouri CDL Holders - Commercial Motor Vehicle (CMV) Operators and the Law


A driver with a Class A, B, or C Commercial Driver License (CDL) is automatically licensed to operate both commercial and private (noncommercial) motor vehicles using one driver license.

However, if the driver commits an offense that requires the suspension or revocation of his/her driver license, the driver will lose all driving privileges, including commercial driving privileges.

A CDL holder, whose license is suspended or revoked cannot drive any CMV during the period of suspension or revocation. The CDL holder can only apply for limited driving privileges to operate private (noncommercial) vehicles.

Missouri CDL Written Knowledge Tests

You will need to pass the Missouri Knowledge Tests that are required for the class of license, restriction, and endorsements you wish to possess. A general knowledge test for the Class A or Class B and C license must be successfully completed by all CDL applicants. The information needed to pass these tests is contained in the FREE Missouri CDL Handbook. Please read and study this manual carefully.
  • Class A - 70 Questions (50 GK + 20 Combination Vehicles) - Skills test required.
  • Class B - 50 Questions - Skills test required.
  • Class C - 50 Questions - Skills test required for bus, school bus and air brakes vehicles..
  • Passenger Endorsement - 20 questions - Skills test required in bus.
  • School Bus Endorsement - 25 questions - Skills test required in school bus.
  • Doubles/Triples Endorsement - 20 questions - No additional skills tests.
  • Tank Vehicle Endorsement - 20 questions - No additional skills tests.
  • Hazardous Materials Endorsement - 30 questions - No additional skills tests.
  • Air Brake Restriction Removal - 25 questions - Additional skills test in vehicle with Air Brakes.

Go to Missouri CDL Selector Tool
If you need help . . .
determining what Class of CDL you need based upon the type of vehicle you will drive (A, B or C) or are not sure which CDL Endorsements you need based upon the type of loads you will carry; use the free CDL Selector Tool . . .
Missouri
Go to CDL Selector Tool
(Use only for a new CDL)
Not sure which MO CDL Tests you need to pass? Use this tool to determine what Class of CDL and which CDL Endorsements you require.

Classes of Missouri CDL and Required Tests

CDL Class Tests Required Possible Endorsements and Required Tests
Class A
(Combination
vehicle endorsement required)

General Knowledge Written Exam

Combination Endorsement Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
T - Doubles/Triples Written Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class B

General Knowledge Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class C

General Knowledge Written Exam

Road Exam

Note: If upgrading to a Class C from a Class D, no road test is required UNLESS the endorsement requires one.
H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam

Missouri CDL Endorsements

Exam Time Allowed (Minutes) # of Questions on Exam # of Correct Answers Needed to Pass
General Knowledge 60 50 40
Air Brakes 25 25 20
HazMat 30 30 24
Tank 20 20 16
Passenger 20 20 16
Doubles/Triples 20 20 16
Combination Vehicles 20 20 16
School Bus 20 20 16

Quickly access the most complete and accurate Official Missouri CDL Information

Missouri CDL Manual, CDL Missouri Handbook
Missouri CDL Requirements

Access Official Federal CDL General Information

Access Official Federal CDL Medical Requirements Info

Access Official Federal CDL Hazardous Materials Info

Click on the items above to find answers to your Missouri CDL questions

  • What is a Commercial Drivers License (CDL)?
  • How to get a Missouri CDL (Commercial Driver's License)
  • How old do you have to be to get a Missouri CDL (Commercial Driver's License)
  • How to get a Missouri CDL HazMat (Hazardous Materials Endorsement) Permit
  • What is the difference between Interstate and Intrastate?
  • How to get a free Missouri CDL Study Guide
  • How to get a Missouri School Bus CDL
  • How much does a Missouri CDL cost?
  • Where is my nearest Missouri DMV CDL office located?
  • Where can I find Missouri CDL (commercial drivers license) forms?
  • What are the Missouri CDL Medical Requirements?

. . . and answers to many more Missouri CDL questions!

Are YOU ready to get YOUR Missouri CDL?
Prepare for YOUR Missouri CDL Tests NOW . . .

 Missouri CDL License
In addition to the Missouri CDL (commercial driver's license) information found in our website covering the Missouri CDL and in the free Missouri CDL Handbook (which is quite boring and a bit confusing - and doesn't have a single multiple-choice question in it that is asked on the actual tests), the complete online Missouri CDL Practice Test prep program will prepare you to easily pass your Missouri CDL written exams to get your Missouri CDL permit. The skills test modules are invaluable to give you a head start before doing your behind the wheel work, possibly saving you a lot of money. The Missouri CDL test prep program includes the following features . . .
  • Covers ALL Eight Missouri CDL written tests.
    • In separate study modules - you won't need all of them - don't waste time on what you don't require.
  • Covers ALL Three Missouri CDL skills tests.
    • In separate study modules - you won't need all of them - don't waste time on what you don't require.
  • 670 practice Missouri CDL test questions with actual answers.
  • Access to CDL videos covering written and skills tests.
  • CDL study guide in both text and audio - listen as you read along.
  • CDL study Quick Reviews.
  • Interactive online CDL Quizzes.
  • and much more!
May your new CAREER be prosperous!!!

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Michael Hamilton
Director
Free CDL Practice Test "I needed to get my CDL permit before starting my skills training the following week. I started using it two minutes after my purchase. Got my CDL permit with time to spare. I highly recommend it." - P.M., Rochester, NY
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