CDL Practice Test
Pass the Hazmat knowledge test and earn your H endorsement
Hazmat freight pays better for a reason: the endorsement takes a TSA background check plus this knowledge exam. Every question here is written against the CDL manual hazardous-materials section and 49 CFR Parts 171–180, with the citation attached — placard tables to shipping-paper format, attendance rules to the ERG.
- Questions
- 35
- To pass
- 80%
- Modes
- Study · Timed
- Time limit
- 25 min (Timed mode)
Study Mode
Learn as you go — one question at a time. Answer, and the correct choice, a plain-English explanation, and the exact 49 CFR / CDL-manual citation appear immediately. Progress saves on this device.
Untimed · instant feedback · free
Timed Test
Exam conditions — 25 minutes on the clock, no feedback until you submit, answers changeable until the end. Explanations and citations are revealed with your score.
25 min · auto-submits at zero · 80% to pass
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