Commercial Driver License
CDL
commercialdriverexam.com is your dedicated CDL practice site: 1,000+ exam-style practice questions, organized across all 3 exam domains. Start with the free practice test — no card required.
- practice questions
- 1,000+
- exam domains
- 3
- practice test
- Free
Exam at a glance
- Exam fee
- State license/permit fees typically range from roughly $40-$100+ (e.g., NJ ~$42)
- Questions on exam
- General Knowledge test is typically ~50 questions, Air Brakes ~25, Combination Vehicles ~25 (a few states such as NY and IL use ~20 on some sections)
- Passing score
- 80% on each section, set federally and not lowerable by states
- Validity
- Generally valid for up to 8 years depending on state, with DOT medical certificate renewal required every 2 years (or sooner if specified)
Published exam facts, from the official outline.
What’s on the CDL exam
- General Knowledge
- Air Brakes
- Combination Vehicles
Official exam blueprint domains — your practice bank mirrors this outline.
The CDL question bank follows the official exam blueprint across 3 domains, so your practice mirrors the real outline — and shows you exactly where you’re weak. See the full blueprint on commercialdriverexam.com →
Your CDL prep is one click away
The free CDL practice test, the full 1,000+ question bank and your readiness score — all on commercialdriverexam.com.
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