MOMissouri CDL permit test guide
The core course follows the national manual text most states use. When your state manual gives a different number, it wins.
- Licensing agency
- Missouri Department of Revenue
- Official CDL page
- dor.mo.gov ↗
- Official CDL manual
- dor.mo.gov ↗
- Testing, fees and appointments
- dor.mo.gov ↗
- Knowledge-test language
- English only
Interpreters are not allowed for knowledge tests.
- Source collection date
Steps to your CDL (federal minimums)
- Choose your class (A, B or C) and endorsements.
- Get a DOT medical exam from a provider on the National Registry and a medical examiner's certificate.
- Pass the knowledge tests at the state agency to get your commercial learner's permit (CLP).
- Hold the CLP at least 14 days and practice with a qualified CDL holder. A CLP is valid for up to one year (some states less).
- Complete entry-level driver training (ELDT) with a registered provider.
- Pass the skills test: pre-trip inspection, basic control and road test, in English.
- Get your CDL. You must be 21 to drive across state lines.
What is different in this state
- Test languages
Missouri law (RSMo 302.720) requires CDL knowledge tests to be given only in English, with no translators or interpreters for written or skills tests.
- Learner permit (CLP)
A Missouri CLP lasts up to 360 days and cannot be renewed; when it expires you must retake the knowledge tests. Hold it at least 14 days before the skills test.
- Knowledge tests
General Knowledge 50 questions, Air Brake 25, Combination 20, Hazmat 30, and Doubles/Triples, Passenger, Tank and School Bus 20 each; you need 80% on each. Tests are given at Highway Patrol testing locations.
- Fees
The CLP costs about $44 ($25 written test + $10 permit + $9 processing). A first CDL costs about $83 ($25 skills test + $40 license for 3-6 years + $18 processing).
- Age
You can get a CLP or CDL at 18, but you are limited to intrastate driving until 21; hazmat requires age 21.
- Also important
Skills tests are by appointment with the Missouri State Highway Patrol or a certified third-party tester. Hazmat holders must retake the hazmat written test at every renewal.
State-only topics in the manual
- Section 14 – Missouri CDL information: eligibility, age, non-domiciled rules, fees and terms, written exam list, CLP rules.
Source collection date:
The three permit tests
General Knowledge
Required for every CDL class.
Mock examAir Brakes
Needed to drive a vehicle with air brakes without an "L" restriction.
Mock examCombination Vehicles
Needed for Class A (tractor-trailers).
Mock exam7CDL is an independent study aid. It is not a government website, not affiliated with any state agency, FMCSA or AAMVA, and not an ELDT provider. Always check your state's official CDL manual and agency.