Prepare for the CDL Hazardous Materials endorsement knowledge test with focused practice on hazardous materials identification, placarding, loading and unloading, shipping papers, emergency procedures, and safe transportation practices.
CDLPrepUSA includes 77 HazMat practice questions, with immediate answer feedback and progress tracking so you can study at your own pace.
Try 5 questions free. No purchase required to start.
The Hazardous Materials, or H, endorsement allows qualified CDL holders to operate commercial motor vehicles transporting hazardous materials that require the endorsement.
The H endorsement requires an additional knowledge test. Drivers seeking the endorsement for the first time are also subject to federal Entry-Level Driver Training requirements before they may take the HazMat knowledge test.
Applicants must also satisfy Transportation Security Administration requirements. States cannot issue, renew, transfer, or upgrade a CDL with a Hazardous Materials endorsement unless TSA has completed the required security threat assessment and determined that the applicant does not pose a disqualifying security risk.
HazMat endorsement preparation covers areas such as:
CDLPrepUSA's HazMat bank includes 77 practice questions.
Work through the questions at your own pace, review incorrect answers, and continue where you left off when you return.
You can start with 5 free practice questions before deciding whether you want access to the complete HazMat exam.
See whether your answer was correct and review the explanation before moving on.
Your account keeps your study progress so you can pick up where you left off.
CDLPrepUSA is available in 19 languages.
Federal CDL standards require applicants to answer at least 80% of knowledge-test questions correctly. States administer their own CDL testing programs under federal minimum standards.
For the endorsement test itself, yes. The H endorsement is knowledge-test-only.
However, first-time H endorsement applicants who are subject to the federal Entry-Level Driver Training rules must complete the required HazMat theory training before the state may administer the knowledge test.
No behind-the-wheel ELDT component is required specifically for the H endorsement.
A TSA security threat assessment is part of the Hazardous Materials endorsement process.
Federal rules prohibit states from issuing, renewing, transferring, or upgrading a CDL with an H endorsement unless the applicable TSA security requirements have been satisfied.
This is separate from studying for and passing the HazMat knowledge test.
Use CDLPrepUSA to work through HazMat endorsement questions, review your answers, and track your progress as you prepare for the knowledge test.
5 free questions to get started.
CDL drivers transporting hazardous materials in circumstances that require the vehicle to be placarded generally need the H endorsement, subject to applicable federal rules and exceptions.
Federal CDL standards require applicants to answer at least 80% of knowledge-test questions correctly.
HazMat preparation includes hazardous materials identification, placards and labels, shipping papers, loading and unloading, cargo securement, compatibility, emergency procedures, and hazardous-materials driving and parking rules.
No separate HazMat skills test is required for the H endorsement itself. It is a knowledge-test-only endorsement. First-time applicants may still be required to complete federal Entry-Level Driver Training before taking the knowledge test.
Yes. The HazMat endorsement process includes TSA security requirements, and states may not issue or renew the endorsement unless the applicable federal security threat assessment requirements are satisfied.
CDLPrepUSA currently includes 77 HazMat practice questions. You can try 5 questions free before unlocking the complete question bank.
Yes. Each state publishes its own CDL manual, and drivers should use their state's current manual when preparing for CDL knowledge testing and HazMat endorsement requirements.
CDLPrepUSA is an independent study and practice service and is not affiliated with or endorsed by FMCSA, TSA, any state DMV, or other government agency. HazMat endorsement requirements involve more than passing a knowledge test and may include training, security, identification, and other eligibility requirements. Always consult your state licensing agency, TSA, your current state CDL manual, and applicable federal regulations for official requirements.