Texas Hazmat Test
You're hauling hazmat through Houston traffic or across the Permian Basin — this test makes sure you know the rules before you hit the road.
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Thirty questions, 80% to pass, 40 minutes. Texas DPS uses the same format — no surprises.
Key Topics
- •Placarding and hazard classes
- •Loading, unloading, and bulk packaging
- •Security, routing, and emergency response
About the Texas Hazmat Test
Topics Covered
- ✓Placarding requirements — Texas highways have inspection stations that check your placards at every weigh station between El Paso and Orange.
- ✓Hazard classes and divisions — You'll see tanker trucks carrying everything from gasoline to anhydrous ammonia along I-10. Knowing which class is which keeps you legal.
- ✓Loading and unloading procedures — Improper loading on a hot Texas day can cause vapor expansion and leaks. That's a real problem in 100-degree heat.
- + 3 more topics
📘 Study Tips & State Info
The Texas DPS hazmat test pulls directly from the federal regulations — 49 CFR Parts 100-185. Don't waste time memorizing every number. Focus on the hazmat table (Section 172.101), the placarding chart, and the loading/unloading rules. The examiners ask procedural questions: 'What placard do you need for this material?' or 'Where do you keep shipping papers?'
Pay attention to the security section. Texas DPS includes a few questions about security plans and what to do if you suspect someone tampered with your load. They also ask about the TSA fingerprinting requirement — you can't get the endorsement without it, and they want to know you understand that.
Practice with the Texas CDL manual's hazmat chapter. Then take our practice tests until you're scoring 90% or higher. The real test has 30 questions, you need 24 correct, and you get 40 minutes. That's plenty of time if you know the material.
Texas DPS handles all CDL testing. You need an appointment for the written knowledge tests — walk-ins are possible but you'll wait. Bring your valid Texas driver license, Social Security card, and proof of U.S. citizenship or lawful permanent residency. You also need a Medical Examiner's Certificate if you're getting a CDL.
The hazmat endorsement requires a TSA background check first. You'll submit your fingerprints through a TSA-approved provider (like IdentoGO). Once approved, you can take the written test. The TSA clearance lasts 5 years, but you must renew it before your CDL renewal.
Fees: The CDL written test fee is $23 per endorsement. The hazmat endorsement costs an additional $86 for the TSA fee. You pay that directly to TSA, not DPS. Check the Texas DPS website for current fees — they change occasionally.
About the Texas Hazmat Test
If you're getting a Texas CDL and plan to haul hazardous materials, you need the Hazmat endorsement. That means passing a 30-question written test at any DPS office. You also need a Transportation Security Administration (TSA) background check — that's separate from the DMV test.
Texas has more hazmat shipments than almost any other state. You've got refineries along the Gulf Coast from Corpus Christi to Beaumont, chemical plants in the Houston Ship Channel, and tanker trucks running I-35 from San Antonio up to Dallas. The test covers federal regulations but the questions are written with real Texas roads and cargo in mind.
You'll need to know placarding rules, loading and unloading procedures, what to do in a leak or spill, and the security requirements that keep your load safe. The DPS examiners expect you to know the hazmat table in the federal regulations — that's where you find proper shipping names, hazard classes, and packing groups.
Passing this test is step one. After that, you'll take your road skills test with the hazmat endorsement. But don't skip the practice — the state average for first-time pass rates on this test is around 65%.
Topics Covered
Study Tips
The Texas DPS hazmat test pulls directly from the federal regulations — 49 CFR Parts 100-185. Don't waste time memorizing every number. Focus on the hazmat table (Section 172.101), the placarding chart, and the loading/unloading rules. The examiners ask procedural questions: 'What placard do you need for this material?' or 'Where do you keep shipping papers?'
Pay attention to the security section. Texas DPS includes a few questions about security plans and what to do if you suspect someone tampered with your load. They also ask about the TSA fingerprinting requirement — you can't get the endorsement without it, and they want to know you understand that.
Practice with the Texas CDL manual's hazmat chapter. Then take our practice tests until you're scoring 90% or higher. The real test has 30 questions, you need 24 correct, and you get 40 minutes. That's plenty of time if you know the material.
Texas Specific Information
Texas DPS handles all CDL testing. You need an appointment for the written knowledge tests — walk-ins are possible but you'll wait. Bring your valid Texas driver license, Social Security card, and proof of U.S. citizenship or lawful permanent residency. You also need a Medical Examiner's Certificate if you're getting a CDL.
The hazmat endorsement requires a TSA background check first. You'll submit your fingerprints through a TSA-approved provider (like IdentoGO). Once approved, you can take the written test. The TSA clearance lasts 5 years, but you must renew it before your CDL renewal.
Fees: The CDL written test fee is $23 per endorsement. The hazmat endorsement costs an additional $86 for the TSA fee. You pay that directly to TSA, not DPS. Check the Texas DPS website for current fees — they change occasionally.