Hazardous Materials CDL Practice Test

The HazMat Endorsement (H) covers hazardous materials. Required for: Drivers transporting placarded hazardous materials. The official FMCSA test contains 30 multiple-choice questions; you must answer at least 24 correctly to pass.

30Questions on official test
24Required correct
70Practice questions in our bank
HAZEndorsement code

About the Hazardous Materials endorsement

The Hazardous Materials (HazMat) test covers the rules for transporting materials that pose a risk to health, safety, and property. Topics include the hazardous materials table, shipping papers, marking, labeling, placarding, loading and unloading, bulk packaging, driving and parking rules, communications, emergencies, and hazardous materials regulations enforced by the U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration. A federal Transportation Security Administration (TSA) background check is also required.

Take the practice test in your state

Pick your state to get the Hazardous Materials practice test, plus your state's specific CDL fees, agency, and minimum-age rules.

ALAlabama AKAlaska AZArizona ARArkansas CACalifornia COColorado CTConnecticut DEDelaware DCDistrict of Columbia FLFlorida GAGeorgia HIHawaii IDIdaho ILIllinois INIndiana IAIowa KSKansas KYKentucky LALouisiana MEMaine MDMaryland MAMassachusetts MIMichigan MNMinnesota MSMississippi MOMissouri MTMontana NENebraska NVNevada NHNew Hampshire NJNew Jersey NMNew Mexico NYNew York NCNorth Carolina NDNorth Dakota OHOhio OKOklahoma OROregon PAPennsylvania RIRhode Island SCSouth Carolina SDSouth Dakota TNTennessee TXTexas UTUtah VTVermont VAVirginia WAWashington WVWest Virginia WIWisconsin WYWyoming

Study tips for the Hazardous Materials test

Your state's CDL handbook is the official study source — it's typically a free PDF on your state DMV's website, and it's adapted from the FMCSA CDL Manual that every state shares. Read the relevant chapter end-to-end at least once before you start drilling questions, then use practice tests to identify weak topics and re-read the corresponding sections.

  • Don't memorize answers. Memorize the reasoning. Real test wording differs from practice tests.
  • Practice the test sequences out loud. Especially for Air Brakes, where you must demonstrate the inspection sequence verbally.
  • Use the explanations. Every question on this site has an explanation that traces back to the FMCSA Manual chapter and section.
  • Time yourself. The official tests aren't strictly timed in most states, but consistent pacing helps you stay calm.
  • Schedule the test only when you score 100% twice in a row. Real tests cost time and re-test fees; better to over-prepare.