Want to haul hazardous materials and increase your CDL earning power? You’ll need to pass the Hazmat endorsement test first. Here’s exactly what to expect—and how to get prepared.
WHAT IS THE HAZMAT ENDORSEMENT TEST?
The Hazmat endorsement (H) is a written knowledge test required by the FMCSA and administered by your state DMV. It evaluates your understanding of:
Hazard classifications & placarding
Safe handling procedures
Emergency response protocols
Federal hazardous materials regulations
You must also undergo a TSA background check and fingerprinting to complete the process.
Benefit
Without Hazmat Endorsement
With Hazmat Endorsement
Job Opportunities
Limited to non-hazardous cargo
Access to specialized and higher-paying freight
Average Pay
$45k–$60k/year
$55k–$85k/year
Employer Demand
Moderate
High – especially in fuel, chemical, and medical supply transport
Career Flexibility
Fewer niche roles
Broader range of regional and national routes
HOW TO PREP FOR THE HAZMAT TEST
Take a FMCSA-approved Hazmat theory course As of 2022, you must complete ELDT theory training before testing.
Study your state CDL manual (Hazmat section) Use it alongside your training course for maximum retention.
Take practice tests Reinforce your knowledge with mock exams.
🎓 Enroll now and take the stress out of Hazmat test prep. With ELDT Nation, you’ll be ready to pass and start earning more, fast.
Frequently Asked Questions About the Hazmat CDL Test
How many questions are on the Hazmat CDL test?
Most states have 30–50 multiple-choice questions on the Hazmat test. The passing score is typically 80% or higher, but check your state’s CDL manual for exact details.
How long does it take to get a Hazmat endorsement?
The timeline varies. Completing ELDT training can take a few days, while the TSA background check may take 2–6 weeks. Plan accordingly to avoid delays.
Do I need a background check for Hazmat?
Yes. The TSA requires fingerprinting and a security threat assessment to ensure you meet federal safety standards.
Can I take the Hazmat test online?
You can complete the required Hazmat theory training online, but the official DMV knowledge test must be taken in person in most states.
Is Hazmat endorsement worth it?
Yes. It increases your earning potential, expands your job opportunities, and makes you more valuable to employers in specialized industries.