CDL Hazmat Practice Test Prep

Pass your 2026 CDL written exam on the first try. 1,025 real practice questions, full-length practice exams, and full coverage of every CDL endorsement — built for commercial drivers preparing for the federal CDL test.

Whether you're chasing a Class A, Class B, Hazmat, Tanker, Passenger, Air Brakes, Doubles/Triples, or School Bus endorsement, every category is covered with up-to-date questions and clear, plain-English explanations.

WHAT'S INCLUDED

• 1,025 practice questions across all 9 CDL categories
• Full-length practice exams matching the 80% pass threshold
• Learn Mode — drill by category with instant feedback and level unlock progression
• Review Mode — every missed question with a full explanation
• Weak Questions — auto-surfaces what you keep getting wrong
• Bookmarks — save tough questions to revisit
• Cheat Sheets — quick-reference summaries
• Handbook viewer — official state CDL manuals built in
• Study streaks — daily goals that keep momentum
• Stats dashboard — accuracy by category, passing ratio, weak-spot count at a glance
• Exam date countdown — set your target date, get reminders at 30/14/7/3/1 days

ALL 9 CDL CATEGORIES (with question counts)

• General Knowledge — 373 questions
• Hazardous Materials (Hazmat) — 115
• Air Brakes — 101
• Combination Vehicles — 90
• Passenger Transport — 83
• School Bus — 81
• Pre-Trip Inspection — 80
• Tanker — 52
• Doubles & Triples — 47

ENDORSEMENTS COVERED

Hazmat (H), Tanker (N), Doubles/Triples (T), Passenger (P), School Bus (S), Air Brakes, Combination Vehicles. Build sessions around the endorsements you actually need for your CDL permit or full Class A/B license.

HOW IT WORKS

1. Pick your state and target exam date during onboarding
2. Practice by category, or take a full practice exam
3. Review misses, retry weak areas, watch your pass rate climb

BUILT FOR PROFESSIONAL DRIVERS

• Practice offline — question bank bundled, no internet needed for sessions
• No ads. Ever.
• No sign-up required to start practicing
• Works on iPhone and iPad
• Progress stays on your device

SUBSCRIPTION

CDL Prep is a subscription service. A weekly or yearly auto-renewing subscription unlocks the full question bank, Review Mode (with full explanations on every missed question), the Handbook viewer, and Cheat Sheets. Subscription auto-renews at the same price unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings.

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