CDL Hazardous Materials (HazMat) Endorsement
The HazMat endorsement authorizes you to transport hazardous materials as defined in 49 CFR 383.5. This includes chemicals, fuels, explosives, radioactive materials, compressed gases, and any cargo requiring hazmat placards. It is one of the most valuable endorsements due to high demand and the TSA background check requirement that limits the driver pool.
Requirements
What you need to qualify for and obtain the Hazardous Materials (HazMat) (H) endorsement.
CDL Test Study Topics
Focus your study time on these key knowledge areas for the H endorsement written test.
- Hazmat classes and divisions (Class 1-9)
- Placarding rules and when they apply
- Shipping papers and emergency response information
- Loading and unloading procedures for hazardous materials
- Bulk tank marking and safety features
- Emergency response procedures and incident reporting
Jobs That Require the H Endorsement
Earning Potential
Annual Pay Boost
+$5,000 - $15,000/year
Demand Level
Very High
Drivers with the H endorsement earn +$5,000 - $15,000/year more annually than non-endorsed CDL holders. The very high demand ensures consistent job availability and strong negotiating leverage.
Top States for H-Endorsed Drivers
These states have the highest demand for drivers with the Hazardous Materials (HazMat) endorsement.
Frequently Asked Questions
How long does it take to get a HazMat endorsement?
The written test itself takes about an hour. However, the TSA background check (required since 2005) can take 4-6 weeks for processing. Plan for at least 6-8 weeks from application to having the endorsement on your CDL.
How much more do HazMat drivers earn?
HazMat-endorsed drivers earn $5,000-$15,000 more annually than non-endorsed CDL-A drivers. Combined with the Tanker (N) endorsement (making it an X endorsement), the pay premium can reach $8,000-$20,000/year.
Do I need to renew my HazMat endorsement?
Yes. The HazMat endorsement must be renewed every 5 years along with a new TSA background check. You must also retake the written knowledge test at each renewal in most states.