CDL Hazmat Test
Shipping papers, placards, loading and what to do in an emergency.
Start practicing · Topic Study · Sample questions
What's on the Test
- Hazardous materials regulations (10 questions): The Intent of the Regulations, Hazardous Materials Transportation - Who Does What, Communication Rules, Loading and Unloading, Bulk Packaging Marking, Loading and Unloading, Hazardous Materials - Driving and Parking Rules, Hazardous Materials Emergencies
- Hazardous materials handling (9 questions): The Intent of the Regulations, Communication Rules, Loading and Unloading, Bulk Packaging Marking, Loading and Unloading, Hazardous Materials - Driving and Parking Rules, Hazardous Materials Emergencies
- Operation of emergency equipment (5 questions): Loading and Unloading, Hazardous Materials - Driving and Parking Rules, Hazardous Materials Emergencies
- Emergency response procedures (4 questions): Communication Rules, Hazardous Materials - Driving and Parking Rules, Hazardous Materials Emergencies
- Operating practices and procedures not otherwise specified (2 questions): The Intent of the Regulations, Hazardous Materials Transportation - Who Does What, Communication Rules, Hazardous Materials - Driving and Parking Rules
How the Exam Works
- Who takes it
- Drivers adding the H endorsement.
- Format
- 30 questions, each with three options.
- To pass
- 24 right (80%), as on every CDL knowledge test (49 CFR 383.135).
Frequently Asked Questions
How many questions are on the CDL Hazmat test?
30, and you need 24 right to pass. A few states differ; your state's CDL manual says.
What else does the hazmat endorsement need?
A security threat assessment from the TSA (or a valid TWIC), and entry-level training before your first hazmat knowledge test (49 CFR 383.141 and 383.71(b)(11)).
Are these the real test questions?
No. They're our own, written from the federal rules and the CDL manual's facts, in the real test's format: three options each and the same number of questions. We're not affiliated with any state, FMCSA or AAMVA.
After the Test
The H endorsement also needs TSA’s security threat assessment, and for your first one, hazmat training from a registered provider before this test. How to Get a Hazmat Endorsement