Texas CDL HazMat Practice Test 2026: DPS Exam Questions & TSA Guide
Need to study offline? Press Ctrl+P (or Command+P on Mac) to save this page as your Texas CDL HazMat test questions and answers PDF study sheet. The placard table and practice questions below are formatted for clean printing so you can review them in the truck cab without cell service.
Texas moves more hazardous materials by truck than any other state in the country. The Permian Basin pumps crude oil. The Houston Ship Channel stores every chemical you can name. The Eagle Ford shale hauls condensate and natural gas liquids across two-lane farm roads. If you want to make real money driving a truck in Texas, you need the HazMat endorsement.
But the Texas CDL HazMat test is not a walk-in exam. You are dealing with three government agencies before you even sit down at the DPS computer: the FMCSA for training requirements, the TSA for your background check, and the Texas DPS for the written knowledge test. Miss one step and you start over.
This guide walks you through the entire process and gives you a Texas CDL HazMat practice test with explained answers. Everything here is based on the current 2026 federal and Texas DPS regulations.
Step 1: The TSA Background Check (Start Here)
You cannot take the HazMat knowledge test until the TSA clears you. This is not optional and it is not fast. Start this process before you do anything else.
Apply Online
Go to the TSA Universal Enrollment Services (UES) website. Select "Hazardous Materials Endorsement" for Texas. You will fill out a questionnaire covering your citizenship, criminal history, and residency. The federal fee is $86.50, paid by credit card during the online application.
IdentoGO Fingerprinting
Texas contracts with IdentoGO for digital fingerprinting. You cannot go to a local police station or the DPS office for this. After your online application, you will receive a service code. Use it to book an appointment at an IdentoGO center.
What to bring:
- Your current Texas CDL or Commercial Learner's Permit
- A secondary form of identification (birth certificate, passport, or permanent resident card)
- The confirmation email from your UES appointment
IdentoGO centers are located in Houston, Dallas, San Antonio, Austin, Midland, Odessa, El Paso, and most mid-size Texas cities. If you work in the oil fields around Midland or Odessa, book early — those locations get backed up during hiring surges.
The Wait
The TSA runs your fingerprints through the FBI criminal database, immigration records, and terrorist watch lists. This takes 30 to 45 days. You cannot expedite it. You cannot call and ask for a status update. When the TSA approves you, they send a notification to the Texas DPS electronically and you receive a letter in the mail.
Do not go to the DPS to take the written test until your status shows "Approved" on the UES website. The DPS computer system will not unlock the HazMat exam if your TSA clearance is still pending.
What Disqualifies You
The TSA denies HazMat applications for:
- Certain felony convictions within the past 7 years (violent crimes, weapons offenses, drug trafficking)
- Any terrorism-related conviction — lifetime ban
- Outstanding criminal warrants
- Dishonorable military discharge
- Being found mentally incompetent by a court
If you have a criminal record, check the TSA's complete disqualifying offenses list before you spend the $86.50. There is no refund if you are denied.
Step 2: ELDT Theory Training
Since February 2022, every first-time HazMat applicant must complete an Entry-Level Driver Training (ELDT) theory course before the DPS will let you take the written exam.
Here is the important part: you only need the theory portion, not behind-the-wheel training. That means you can take an online course from your couch instead of sitting in a classroom.
- Cost: $50 to $100 for an online ELDT HazMat theory course
- Time: About 4 to 6 hours of reading and quizzes
- Provider check: Only use providers listed on the FMCSA's Training Provider Registry (TPR). If the school is not on the registry, your certificate is worthless.
- Verification: When you pass the course, the provider uploads your completion to the federal TPR database instantly. The DPS checks this database before unlocking your test.
Do not skip this step. The DPS computer will literally not let you start the exam without a verified ELDT completion on file.
Step 3: The Texas CDL HazMat Test
Once your TSA is approved and your ELDT is uploaded, you can walk into any Texas Driver License Office and take the written test. No appointment needed for the knowledge exam at most locations.
Test format:
- 30 multiple-choice questions on a computer kiosk
- 80% passing score (24 correct out of 30)
- No time limit at most Texas DPS locations, but plan for about 45 minutes
- Questions are pulled from Section 9 of the Texas Commercial Driver License manual
The test covers four topic areas: Containment (packaging), Communication (placards, labels, shipping papers), Loading and Unloading (segregation), and Driving Rules (railroad crossings, parking, tire checks).
The 1,001-Pound Rule: Table 1 vs Table 2
This is the most-tested topic on any Texas CDL HazMat test. The DMV will ask you about it in at least 3 or 4 different ways.
| Placard Table | When to Placard | Common Materials |
|---|---|---|
| Table 1 | ANY amount. Even 1 pound. | Explosives 1.1 / 1.2 / 1.3, Poison Gas 2.3, Dangerous When Wet 4.3, Organic Peroxide 5.2 (Type B), Radioactive Yellow III |
| Table 2 | 1,001 lbs or more (aggregate) | Flammable Gas 2.1, Flammable Liquid 3 (gasoline, diesel, crude oil), Oxidizer 5.1, Corrosive 8 (battery acid) |
The trap question the DPS loves: "You are hauling 800 pounds of Class 3 Flammable Liquid (crude oil). Do you need placards?" Answer: NO. Class 3 is Table 2, and 800 pounds is under 1,001. But if that question said "800 pounds of Poison Gas 2.3," the answer is YES — Table 1 materials require placards at any amount.
If you are working in the Texas oil fields, you will see Table 2 materials every single day. Crude oil is Class 3. Diesel fuel is Class 3. Condensate is Class 3. All Table 2, all subject to the 1,001-pound rule.
Texas Oil Field HazMat Rules
Texas has some unique operational environments that the standard CDL manual does not cover in depth. If you are driving in the Permian Basin, Eagle Ford, or Barnett Shale, here is what matters on the test and on the job.
Crude oil loading and unloading:
- Crude oil is Class 3 Flammable Liquid. Red placard when over 1,001 lbs.
- You must ground and bond the tank before loading or unloading to prevent static electricity ignition. The test asks about this procedure.
- No smoking within 25 feet of any flammable loading operation.
Waiting time at well sites:
- Know the difference between "On Duty" waiting time and "Off Duty" (Sleeper Berth) waiting time at well sites. This affects your Hours of Service log.
- If you are sitting in the driver's seat, ready to move, you are On Duty. If you are in the sleeper berth with no obligation to work, you can log Off Duty.
Tank vehicle requirements:
- If you are hauling crude in a cargo tank, you need both the HazMat (H) endorsement AND the Tanker (N) endorsement. Most Texas oil field jobs require both.
- The combined HazMat + Tanker endorsement is often called the "X" endorsement.
Texas CDL HazMat Practice Test: 10 Questions
These questions mirror the format and difficulty of the actual DPS exam. Cover the answers and work through them honestly.
Emergency responders must find shipping papers instantly if you are unconscious or away from the truck. The driver's seat or door pouch are the only acceptable locations. Never in the glove box, never in the trailer.
Poison Gas 2.3 is a Table 1 material. Table 1 requires placards at any quantity, even 1 pound. Class 3 and Class 8 are Table 2 materials that only require placards over 1,001 lbs.
Crude oil is Class 3 Flammable Liquid, a Table 2 material. The 1,001-pound rule applies. At 1,200 lbs you are over the threshold. Placards are required on all four sides. Crude oil is not exempt from any placard rules.
You must ground and bond the cargo tank to the loading facility before any flammable transfer. This eliminates static electricity buildup that could ignite vapors. This is a critical safety procedure in Texas oil field operations.
Stop between 15 and 50 feet before the nearest rail. Turn on your 4-way flashers. Open the window and door. Look and listen. Do not shift gears while crossing. Texas has thousands of rail crossings, and this rule applies to all HazMat loads.
Cyanides and acids react to produce hydrogen cyanide gas, which is lethal. This segregation rule is absolute — no dividers, no distance separation, no exceptions. They cannot be in the same trailer.
Division 1.1, 1.2, and 1.3 explosives require a 300-foot buffer from any structure or gathering of people. This is a hard number that shows up on virtually every **CDL HazMat practice test Texas** students take.
Check tires at every stop, or every 2 hours / 100 miles. A hot or underinflated tire on a HazMat load can cause a fire that is impossible to extinguish. This is one of the strictest inspection intervals in CDL regulations.
A placarded vehicle must carry a fire extinguisher with a UL rating of at least 10 B:C. It must be fully charged, accessible, and inspected regularly.
The shipper handles all packaging, labeling, and shipping paper preparation. The driver verifies the load is properly secured, placards are correct, and papers are in order before driving.
How to Score Your Practice Test
Count correct answers out of 10:
| Score | Readiness | Next Step |
|---|---|---|
| 90-100% | Ready | Book your DPS appointment |
| 80-89% | Almost | Review wrong answers, retake in 2 days |
| 70-79% | Not yet | Study your weakest section in the manual |
| Below 70% | Need work | Re-read Section 9 of the Texas CDL manual |
The DPS passing threshold is 80%. But on any CDL HazMat practice test Texas you take at home, aim for 90% or higher. The real exam adds time pressure and different question wording that will cost you points.
Need to study on the go? Press Ctrl+P to save this page as your Texas CDL HazMat test questions and answers PDF and keep it on your phone for offline review.
The Complete Process: How to Get Your HazMat in Texas
Here is the full timeline from start to finish:
- Apply for TSA clearance online ($86.50) — Day 1
- Schedule IdentoGO fingerprinting — within a few days
- Complete ELDT theory course online ($50-$100) — can do this while waiting for TSA
- Wait for TSA approval — 30 to 45 days
- Visit DPS for the written HazMat test — walk-in at most locations
- DPS adds the H endorsement to your CDL — same day in most cases
Total cost: roughly $140 to $190 out of pocket. Total time: 5 to 7 weeks from start to finish.
The payoff: Texas HazMat drivers earn $15,000 to $25,000 more per year than drivers without the endorsement. In the Permian Basin, HazMat + Tanker drivers routinely clear six figures.
HazMat (H)
Master the placarding tables, shipping papers, and TSA requirements.
Conclusion
The Texas CDL HazMat test is not something you can wing. The placard rules are specific, the TSA background check takes weeks, and the DPS exam asks layered questions that combine hazard classes, weight thresholds, and segregation rules in a single scenario.
Use this Texas CDL HazMat practice test to find your weak spots. Focus your study time on Table 1 vs Table 2 placard rules and the segregation restrictions — those two topics account for more wrong answers than everything else combined. Start your TSA application today because the 30-45 day wait is the real bottleneck.
For more preparation, try our Free CDL Practice Test with additional HazMat questions. Check our HazMat Practice Test guide for the full 30-question practice exam, and our CDL HazMat Study Guide for the complete breakdown of the 9 hazard classes and TSA process.
Frequently Asked Questions (FAQ)
How do I schedule HazMat fingerprinting in Texas?
Texas uses IdentoGO for digital fingerprinting. Visit the TSA Universal Enrollment Services (UES) website, select Hazardous Materials Endorsement for Texas, and get a service code. Then book an appointment at a local IdentoGO center. Bring your Texas CDL and a secondary ID (birth certificate or passport). The fee is $86.50.
Can I take the Texas CDL HazMat test online?
No. The ELDT theory course can be completed online through an FMCSA-approved provider, but the actual Texas CDL HazMat test must be taken in person at a Texas Driver License Office. You cannot take the written knowledge exam from home.
How many questions are on the Texas CDL HazMat test?
The Texas HazMat knowledge test has 30 multiple-choice questions. You need at least 24 correct (80%) to pass. Questions are pulled from Section 9 of the Texas CDL manual and cover containment, communication, loading, and driving rules.
Can I print the Texas CDL HazMat test questions and answers as a PDF?
Yes. Press Ctrl+P (or Command+P on Mac) to save this page as a Texas CDL HazMat test questions and answers PDF. The placard table and practice questions are formatted for clean printing so you can study offline in the truck cab.
What disqualifies you from getting a HazMat endorsement in Texas?
The TSA denies applications for certain felony convictions within the past 7 years, any terrorism-related conviction (lifetime ban), outstanding criminal warrants, dishonorable military discharge, or being found mentally incompetent by a court. Check the TSA disqualifying offenses list before applying.
Do I need ELDT training for the HazMat endorsement in Texas?
Yes. Since February 2022, all first-time HazMat applicants must complete an ELDT theory course from an FMCSA-approved provider on the Training Provider Registry. You only need the theory portion — no behind-the-wheel training. Online courses cost $50-$100 and take 4-6 hours. The DPS will not unlock the exam without a verified ELDT completion on file.
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