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This California Hazardous Materials (HazMat) practice test is the second of two in our California-specific series of HazMat materials. It presents you with 30 multiple-choice questions based on Section 9 of the official California Commercial Driver Handbook (California CDL Handbook 2026). Just like the first test, it’s designed to prepare you for the HazMat portion of your Commercial Driver’s License (CDL) exam. You’ll get immediate feedback with explanations of each correct answer, so you can learn as you go instead of the less effective method of waiting until the end of the practice assessment.
Adding the HazMat endorsement (“H”) to your CDL is a smart career move. It broadens your job opportunities and can increase earning potential with carriers that require HazMat drivers. California’s economy makes HazMat work especially relevant. The petroleum industry (Chevron HQ in San Ramon), biotech and pharmaceuticals (Amgen and Gilead Sciences), and chemical manufacturing are among the state’s largest employers of HazMat-endorsed drivers.
The endorsement permits you to legally transport substances the U.S. government deems hazardous, from flammable liquids and corrosives to explosives, radioactive materials, and infectious substances. One of the major objectives behind the detailed process for obtaining a HazMat endorsement is to ensure safety for you, the public, and the environment. As such, the process can be a bit complicated, but rest assured, we have you covered.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
There are two major steps to qualify in California. First, you must undergo a federal security threat assessment by the Transportation Security Administration (TSA), which includes fingerprinting, a background check, and fees. Once this process (which can take weeks, so start studying while you wait ) is successfully completed, you must pass the HazMat Knowledge Test, administered by the California DMV. This test covers federal regulations, communication rules, packaging, loading/unloading, driving and parking rules, and emergency procedures. To pass, you must score at least 80% (24 correct answers out of 30).
Our online practice tests mirror the official DMV test format. They are strategically designed to circumvent all the extraneous information you’ll find elsewhere, simplifying the overall process. Apply for your fingerprints and background check, and use the wait time to study with our practice tests. Once you feel prepared, visit the DMV. Be sure to take the necessary documents, and be prepared to pay any related fees. Pass the test and immediately become eligible for HazMat-related opportunities!
Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 CA Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DMV.
