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Missouri
Missouri CDL · Updated 2026

Missouri CDL Practice Tests

Missouri issues commercial driver licenses through the Department of Revenue Driver License Bureau, with skills testing run by the Missouri State Highway Patrol. The state follows federal CDL rules in its Commercial Driver License Manual. You can drive a commercial vehicle inside Missouri at 18. You must be 21 to drive across state lines or carry hazardous materials.

Based on the official state DMV CDL manual.

Missouri CDL quick facts

Min age (intrastate)

18 to drive a CMV within Missouri.

Min age (interstate)

21 to drive across state lines.

CLP hold period

14 days minimum before the skills test.

General Knowledge test

~50 Qs; 80% to pass.

Sources: Missouri CDL Manual (PDF) Missouri Department of Revenue Commercial Drivers page Missouri Department of Revenue Fee Chart (PDF)

Missouri CDL FAQ

How old do I need to be to get a CDL in Missouri?

You must be at least 18 to drive a commercial vehicle inside Missouri. You must be 21 to drive across state lines or carry hazardous materials.

How long must I hold my Missouri CLP before the skills test?

You must hold your Commercial Learneru0027s Permit for at least 14 days before you can take the CDL skills test.

How much does a Missouri CDL cost?

Most first-time applicants pay about $83: a $40 license fee, $18 office processing fee, and $25 skills test fee.

Do I need to take Entry-Level Driver Training in Missouri?

Yes. If you are getting your first Class A or B CDL, or your first H, P, or S endorsement, you must complete federal ELDT from an FMCSA-registered provider.

Do I need a DOT medical card to get a Missouri CDL?

Yes. You must complete a DOT medical exam and submit your Medical Examineru0027s Certificate to the Department of Revenue.

What is the official Missouri CDL manual?

The Missouri Commercial Driver License Manual is the official study guide. You can download it free from dor.mo.gov.