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  • 0  (6 mistakes allowed to pass)

Free California HazMat (H) Endorsement Practice Test 2025

Avg. pass rate on our CA tests: 62%.
Average pass rate for this test: 60%.
Moderate
7 min
70% fail this test first try • Better here than at DMV
Score distribution:
90-100=>13%
80-89=>20%
70-79=>26%
60-69=>22%
<60%=>19%
Avg. first-try score: 70%

California is a HazMat powerhouse. With major corridors like I-5, I-10, I-15, and US-101 connecting ports, refineries, and distribution centers, HazMat-certified drivers are in constant demand. Without this endorsement, you cannot legally transport explosives, fuels, industrial chemicals, radioactive materials, or infectious substances—locking yourself out of thousands of specialized, higher-paying jobs.

Age exception for California: Drivers 18-20 years old can obtain the HazMat endorsement, but federal law restricts them to intrastate (within California) transport only. Interstate HazMat transport requires age 21+.

Top California employers requiring HazMat drivers:

  • Petroleum & Energy: Chevron (headquartered in San Ramon), Valero, Phillips 66
  • Pharmaceuticals: Amgen Inc. (Thousand Oaks), Gilead Sciences (Foster City)
  • Chemical manufacturing: Air Products, Linde, numerous ag-chem distributors
  • Ports & logistics: LA/Long Beach port carriers, Central Valley ag transport

What to expect on the official California HazMat test:

  • Questions: 30 multiple-choice
  • Passing score: 80% (24 correct answers required)
  • TSA background check: Mandatory—apply immediately (takes 2-4 weeks)
  • Topics covered: Federal regulations, substance handling, packaging, quantity limits, transport configurations

How to get your HazMat endorsement:

Free California HazMat (H) Endorsement Practice Test 2025
CA commercial driver's license
Original questions by our team Based on 2025 CA CDL Handbook
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO, Driving-Tests.org

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the California DMV changes its handbook or website information. Official sources we check: 

Real California drivers who passed first try

Verified student reviews • Shared with permission

Passed 1st time. EZ-PZ.
For the CA hazmat knowledge test, there were only 1 or 2 questions I hadn't seen here. Otherwise, Driving-Tests had all/nearly all of the questions that were on my test.
E

About the California CDL

  1. Apply for TSA fingerprinting now — results take weeks, so don’t wait
  2. Study while you wait using our practice tests and the official CDL manual (California CDL Handbook 2025)
  3. Pass the DMV knowledge test (80% required)
  4. Visit DMV with documents and fees to receive your endorsement

Our California HazMat practice tests mirror the official DMV exam format. 30 questions with instant feedback — no fluff, just what you need to pass on your first attempt.

More CA CDL test resources

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