CDL HazMat Practice Test & App
Master your Hazardous Materials endorsement
About HazMat Test
Prepare for your HazMat endorsement (Class H) test with focused practice across three exam areas: Hazardous Materials, Tank Vehicles, and Doubles & Triples. Every question comes with an explanation tied to a specific CDL Manual section. Includes the full ERG 2024 reference, a placarding decision tool, load/unload safety checklist, and emergency contacts (NRC, CHEMTREC, 911) — everything you need in the cab.
What you'll find inside
- ✓ 200+ HazMat practice questions
- ✓ Tank Vehicles & Doubles/Triples
- ✓ Full ERG 2024 reference
- ✓ Placarding decision tool
- ✓ Pre-trip HazMat checklist
- ✓ Incident response steps
- ✓ Flash cards
- ✓ Voice readout
Practice HazMat questions free
Pick a topic and answer 10 free questions in your browser. No signup, no download required.
Hazardous Materials
HazMat regulations: classes, placards, labels, shipping papers, segregation tables, and the Emergency Response Guide.
Tank Vehicles
Tank vehicle handling, surge, baffled vs. unbaffled tanks, and HazMat-specific tank operations.
Doubles & Triples
Pulling doubles and triples with HazMat cargo: coupling, pintle hooks, and additional safety rules.
Get HazMat Test on your phone
Unlock all 210+ questions, take unlimited mock tests, study offline on your breaks, and get every answer explained — for the price of a coffee.