Missouri CDL Practice Test 2026 & Missouri DOR Rules
Prepare for your commercial driver's license with the official Missouri exam curriculum. TruckerPass combines the 985 federal FMCSA questions with Missouri-specific commercial vehicle limits, air brake testing, and the 2026 Modernized Pre-Trip inspection.
Missouri River Bridges & Ozark Undulating Terrain
- Major Mississippi and Missouri River bridges on I-70, I-64, and I-55 experience severe ice accumulation before surrounding road surfaces.
- The Ozarks region on I-44 features undulating hills requiring proper gear selection to prevent engine lugging and brake overheating.
- Commercial vehicles over 18,000 lbs must stop at all Missouri State Highway Patrol weigh stations.
- Missouri DOR requires 80% passing on the 50-question general test.
Official Missouri Test Format
- Licensing Agency: Missouri Department of Revenue (DOR)
- General Knowledge: 50 questions, 80% to pass (at least 40 correct).
- Air Brakes Endorsement: 25 questions, 80% to pass (required for air-equipped rigs).
- Combination Vehicles: 20 questions, 80% to pass (Class A tractor-trailers).
- Modernized Pre-Trip Inspection: 4-Zone component walkaround + 4-Step air brake test.
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Download Free 2026 Missouri Pre-Trip Cheat Sheet PDF
Get our printable 4-Zone AAMVA Walkaround & Air Brake Recitation Guide used by top trucking schools, plus instant VIP notification when TruckerPass hits the App Store & Google Play.
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