CDL Hazmat 2026
Get ready for your CDL Hazmat certification. Practice questions with step-by-step answer explanations and instant scoring.
- Class H (Hazardous Materials) - Required for transporting hazardous materials, such as flammable and combustible liquids, gases, or other explosives.
- Class X (Combination of Tank Vehicles and Hazardous Materials) - Allows a driver to transport hazardous materials in a tank vehicle.
Earning the hazardous materials endorsement (HAZMAT) can be an excellent opportunity for commercial drivers as a lot of companies rely on the transportation of hazardous materials. However, finding drivers with HAZMAT certification can be difficult. Practice with the free CDL practice test on PracticeTestGeeks (32 questions with answer explanations).
Obtaining a HAZMAT certification is a bit more complicated than the others, as it needs fingerprints, a background check, and written tests to be completed and passed before it can be granted.
CDL: upcoming dates and official changes
- Updated Oct 24, 2026: Exam fee (Hazmat endorsement (TSA threat assessment)) is now $88.25 (previously $85.25).
- Updated Oct 24, 2026: Exam fee (Hazmat endorsement, TWIC holder) is now $41.00 reduced rate (previously $41.00 reduced rate).
Facts verified Oct 24, 2026 against U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th. Dates that have passed are removed automatically.
- To pass each CDL knowledge test, a driver applicant must correctly answer at least 80 percent of the questions. (U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th)
- The TSA security threat assessment fee for a new or renewing hazmat endorsement (HME) applicant is $88.25, effective January 1, 2025. (tsa.gov)
- The TSA hazmat endorsement threat assessment fee is reduced to $41.00 for applicants who already hold a valid TWIC. (tsa.gov)
- A state must use a different version of the CDL knowledge test when an applicant retakes a previously failed test. (U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th)
- A commercial learner's permit is valid for no more than one year from the initial date of issuance without retaking the general and endorsement knowledge tests. (U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th)
- A hazmat endorsement (HME) generally must be renewed every five years, with new fingerprints required at renewal. (tsa.gov)
- CDL knowledge tests may be administered in written form, verbally, or in automated format, and in a foreign language provided no interpreter is used. (U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th)
Facts verified Oct 24, 2026 against U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th. Dates that have passed are removed automatically.
CDL Exam at a Glance
| Item | Detail | Official source |
|---|---|---|
| Passing score | 80% on each knowledge test | U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th |
| Exam fee (Hazmat endorsement (TSA threat assessment)) | $88.25 | tsa.gov |
| Exam fee (Hazmat endorsement, TWIC holder) | $41.00 reduced rate | tsa.gov |
| Retake policy | Retake must use a different test version | U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th |
| Validity (Commercial learner's permit) | Max 1 year from initial issuance without retesting | U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th |
| Renewal (Hazmat endorsement) | Renew every 5 years | tsa.gov |
| Delivery | Written, verbal or automated; foreign language allowed, no interpreter | U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th |
Facts verified Oct 24, 2026 against U.S. Department of Transportation – Federal Motor Carrier Safety Administration (49 CFR Part 383); TSA for the hazmat th. Dates that have passed are removed automatically.
Free CDL Study Tools
Interactive CDL resources on PracticeTestGeeks, free to start:
- Class A Driver's License Practice Test -2 — 32 questions with instant scoring and answer explanations
- CDL flashcards — review key terms and concepts card by card
- CDL study guide — topic-by-topic overview of what the exam covers
- CDL cheat sheet — one-page printable summary for last-minute review
CDL Practice Test Questions
Prepare for the CDL - Commercial Driver's License exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
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⚡ CDL HAZMAT Requirements
To qualify as a CDL driver transporting hazardous materials, you must meet both state and federal government criteria. Federal law sets some minimum requirements for getting a CDL and transporting hazardous materials that your state must test for. Federal law also dictates that you undergo a security threat assessment mandated by the Patriot Act and conducted by the Transportation Security Administration.
Materials such as explosives, gases, some solids, flammable and combustible liquids, and other materials that may cause harm are classified as hazardous materials. Without a HAZMAT endorsement, a truck driver will be restricted from transporting materials classified as hazardous.
To qualify for a HAZMAT endorsement, one must suffice the following eligibility criteria:
- Proof of citizenship or legal status
- Valid Commercial Driver’s License (CDL) with at least 2 years experience
- Proof of Social Security Number
- Must be of legal age to run a hazardous materials vehicle
- Valid medical examiner’s certificate
- Must not have a history of disqualifying commercial offenses
- Pass the HAZMAT Endorsement Knowledge Test
- Pass the vision screening exam
- Pass the Transportation Security Administration (TSA) security threat assessment, including fingerprinting
A person applying for a CDL HAZMAT endorsement will be permanently disqualified if convicted of any of the following offenses:
- Espionage
- Sedition/Treason
- Transportation security incident
- Improper transportation of a hazardous material
- Unlawful possession, use, sale, manufacture, purchase, receipt, shipping, import, export, storage of, or dealing in an explosive or explosive device
- Murder
- Conspiracy to commit any of the above crimes
Applicants who failed to pass the background check may plead within 60 days of the decision. Failure to pass the background check will not result in having your CDL revoked. However, you cannot transport hazardous materials.
To earn your Endorsement, you must:
- Complete a “HAZMAT Endorsement” application.
- Have a medical screening and obtain your Department of Transportation Medical Card.
- Schedule and take your CDL HAZMAT Test.
- Submit to a TSA Background Security Clearance.
- Wait for TSA to send you an official report of completion.
To pass your Hazardous Materials Test and obtain your CDL HAZMAT certification, be sure to study and prepare for it using the many resources listed below:
- CDL HAZMAT practice test
- CDL HAZMAT study guide pdf
- CDL HAZMAT study guide
- Crist CDL HAZMAT test
- CDL HAZMAT practice test printable
- CDL HAZMAT test questions and answers
- CDL HAZMAT test questions and answers pdf
- Crist CDL HAZMAT
- CDL HAZMAT book
- CDL HAZMAT endorsement study guide
- CDL HAZMAT practice test 2026
- CDL HAZMAT study guide free
- Crist CDL HAZMAT test 2026
- CDL Crist HAZMAT
- Crist CDL HAZMAT practice test
- HAZMAT study guide CDL
- CDL HAZMAT training video
📋 CDL HAZMAT Test
Typically, the CDL HAZMAT test consists of at least 30 questions that will test your knowledge on several aspects of safe handling and transportation of hazardous materials, including:
Our free ATDH driving theory practice test covers road signs, traffic regulations, and defensive driving principles required for the Approved Theoretical Driving Hours assessment.
Commercial drivers requiring the G60 endorsement can prepare with our free G60 driver qualification practice test — covering road regulations, load securing, and vehicle inspection requirements.
New drivers can prepare for their state knowledge test with our free DMV practice test — covering road signs, traffic laws, right-of-way rules, and safe driving practices used in 2026 state exams.
For a fuller set of questions on this topic, see our printable cdl practice test resource.
- Reasons for the Regulations
- Bulk Tank Marking, Loading, Unloading
- Responsibilities as a HAZMAT Driver
- Driving and Parking Regulations
- Rules On Communications
- Emergency Situations
- Safe Loading and Unloading
Fees for the actual CDL HAZMAT test will differ depending on which state you are getting your CDL HAZMAT Certification. However, you may expect and prepare to pay at least $100 to $125 from start to end.
In most cases, the required passing score for a state to grant a CDL HAZMAT Endorsement is 80%, which means that one must answer at least 24 questions correctly on a standard 30 question test.
Transportation Security Administration CDL HAZMAT endorsement application fee
This cost will include your TSA background screening and Threat Assessment check:
- For new applicants, they may pay $88.25.
- Some applicants may be eligible for a reduced rate of $41.00.
Note: You can visit the TSA HAZMAT Endorsement Application Page to apply and to see which fee will apply to you.
After taking your CDL HAZMAT test, you will not receive the actual score you earned. You will be informed whether you were granted with CDL HAZMAT Endorsement or not once you've fulfilled all the requirements.
- ✓Confirm your exam appointment and location
- ✓Bring required identification documents
- ✓Arrive 30 minutes early to check in
- ✓Read each question carefully before answering
- ✓Flag difficult questions and return to them later
- ✓Manage your time — don't spend too long on one question
- ✓Review flagged questions before submitting
How to pass a HAZMAT test?
🙋 CDL Questions
To pass a HAZMAT test, make sure to prepare and study well using free practice tests and study guides available online. You can review online or download a printable copy, such as a PDF file.
How much money does a CDL HAZMAT driver make?
The average CDL HAZMAT driver’s salary is $19.20 per hour and $53,304 per year, excluding bonuses.
How many times can you retake the HAZMAT test?
Although you need to pay to take the exam each time you take it, you can retake the exam as many times as you want until you achieve a passing score of 80% or higher.
How many questions are there in the HAZMAT test?
The format, length, and requirements for the CDL HAZMAT Test vary according to which state you live. In most cases, CDL tests have 30 or more questions.
How do I schedule a Texas CDL HAZMAT test?
The Service Code will be supplied to applicants at the Driver License Office during the HME application process. Individuals can also make an appointment and pay the non-refundable cost by calling 888-467-2080.
How much does the CDL HAZMAT training certification cost?
A CDL Hazmat endorsement will set you back about $100, and a TSA screening would set you back about $87. However, depending on fees, state costs, and whether you need to update your CDL-A license, this pricing may vary.
- +Validates your knowledge and skills objectively
- +Increases job market competitiveness
- +Provides structured learning goals
- +Networking opportunities with other certified professionals
- −Study materials can be expensive
- −Exam anxiety can affect performance
- −Requires dedicated preparation time
- −Retake fees apply if you don't pass
Pros and Cons at a Glance
| Pros | Cons |
|---|---|
| Validates your knowledge and skills objectively | Study materials can be expensive |
| Increases job market competitiveness | Exam anxiety can affect performance |
| Provides structured learning goals | Requires dedicated preparation time |
| Networking opportunities with other certified professionals | Retake fees apply if you don't pass |
Sample CDL Practice Questions
Try these questions from our free CDL practice tests. The correct answer and an explanation follow each question.
What does a diamond-shaped hazmat placard primarily communicate to emergency responders?
- A. The shipper's company name
- B. The class of hazard the material poses
- C. The weight of the load in pounds
- D. The destination of the shipment
Answer: B. The class of hazard the material poses
Placards use color, symbol, and number to indicate the hazard class of the material being transported.
When is a HazMat endorsement required on a CDL?
- A. When transporting materials in quantities requiring placarding or any select agent/toxin
- B. Only when transporting explosives or radioactive materials
- C. Only for interstate shipments of hazardous materials
- D. Only when the shipment exceeds $10,000 in declared value
Answer: A. When transporting materials in quantities requiring placarding or any select agent/toxin
A HazMat endorsement (H endorsement) is required whenever a driver transports hazardous materials in quantities that require placarding, OR any amount of a material listed as a select agent or toxin. Obtaining this endorsement requires passing a knowledge test and a TSA security threat assessment background check.
A driver must stop and check for hazmat leaks at which of the following intervals during transport?
- A. Every 500 miles or at every state line
- B. Every 150 miles or every 3 hours, whichever comes first
- C. At the beginning of the trip only
- D. Every 25 miles or 30 minutes, whichever comes first
Answer: B. Every 150 miles or every 3 hours, whichever comes first
Regulations require drivers to inspect hazmat loads within the first 25 miles of a trip and then every 150 miles or every 3 hours, whichever comes first, to catch leaks or shifts before they become emergencies.
What must the driver do before transporting a hazmat load?
- A. Ignore the placards if in a hurry
- B. Inspect the vehicle and verify shipping papers and placards match the load
- C. Remove all labels to save space
- D. Combine incompatible materials to save trips
Answer: B. Inspect the vehicle and verify shipping papers and placards match the load
Drivers must inspect the vehicle and confirm the load, papers, and placards are correct and compatible.
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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy