Texas CDL Hazmat Endorsement Practice Test
2026 – 250 Questions with Answers & Rationales
| Instant Pdf Download
This comprehensive practice exam covers all essential topics for the Texas Hazardous
Materials Endorsement knowledge test, including placarding requirements, shipping papers,
loading/unloading procedures, driving and parking rules, emergency response, TSA security
threat assessment, hazard classes, segregation and compatibility, and federal and state
regulations.
1. A hazardous materials endorsement is required to transport any material that:
A) Weighs over 1,000 pounds
B) Is flammable or explosive only
✓ C) Requires the vehicle to be placarded under 49 CFR Part 172
D) Is listed in the FMCSA regulations as hazardous
Any load requiring placarding per federal hazardous materials regulations (49 CFR
Part 172 Subpart F) mandates a hazmat endorsement on the CDL. The placarding
requirement triggers the endorsement, not simply the material's weight or category.
2. Which agency primarily enforces federal hazardous materials transportation
regulations?
, A) Federal Motor Carrier Safety Administration (FMCSA) only
✓ B) Pipeline and Hazardous Materials Safety Administration (PHMSA)
C) Environmental Protection Agency (EPA)
D) Department of Homeland Security (DHS)
PHMSA within the U.S. Department of Transportation develops and enforces the
Hazardous Materials Regulations (HMR). FMCSA enforces motor carrier safety,
including hazmat compliance for drivers, but PHMSA writes the rules.
3. A shipping paper for hazardous materials must include all of the following EXCEPT:
A) Proper shipping name
✓ B) Shipper's credit card number
C) Hazard class or division
D) Identification number
Shipping papers must contain the proper shipping name, hazard class/division, ID
number, packing group, total quantity, and emergency contact phone number.
Financial information is not required.
4. Where must a driver keep hazardous materials shipping papers while driving?
A) In a locked box under the passenger seat
✓ B) Within immediate reach while restrained, or in a pouch on the driver's
door
, C) In the trailer with the hazardous materials
D) In a briefcase in the sleeper berth
49 CFR §177.817(e) requires shipping papers to be within the driver's immediate
reach when the seat belt is fastened, or in a holder mounted to the inside of the
driver's door. They must be visible to first responders.
5. When a driver is away from the vehicle, shipping papers for hazardous materials
must be:
A) Left on the dashboard in plain view
B) Locked in the glove compartment
✓ C) Placed in a pouch on the driver's door or in plain view on the driver's seat
D) Taken with the driver at all times
When the driver is not in the vehicle, the papers must be either in the door pouch or
on the driver's seat, visible to emergency personnel entering the cab.
6. What is the minimum size required for a hazardous materials placard?
A) 8 inches by 8 inches
✓ B) 9.84 inches (250 mm) on each side
C) 12 inches by 12 inches
D) 10.5 inches by 10.5 inches
, Placards must be square-on-point and at least 250 mm (9.84 inches) on each side,
with a solid line inner border 12.7 mm from the edge.
7. A placard must be placed on a transport vehicle or freight container:
✓ A) On all four sides of the vehicle
B) Only on the front and rear
C) Only on the sides
D) On the rear only
Placards must be displayed on each side and each end of the vehicle, ensuring
visibility from all four directions.
8. Table 1 hazardous materials require placarding:
✓ A) For any quantity of the material
B) Only if over 1,001 pounds aggregate gross weight
C) Only when transported in bulk packaging
D) Only for international shipments
Table 1 materials (e.g., explosives, poisons by inhalation, radioactive Yellow III) must
always be placarded regardless of the amount. Table 2 materials require placarding
when aggregate gross weight is 1,001 pounds or more.
9. Which of the following is a Table 1 hazard requiring placards for any amount?
A) Gasoline (Class 3, PG II)
2026 – 250 Questions with Answers & Rationales
| Instant Pdf Download
This comprehensive practice exam covers all essential topics for the Texas Hazardous
Materials Endorsement knowledge test, including placarding requirements, shipping papers,
loading/unloading procedures, driving and parking rules, emergency response, TSA security
threat assessment, hazard classes, segregation and compatibility, and federal and state
regulations.
1. A hazardous materials endorsement is required to transport any material that:
A) Weighs over 1,000 pounds
B) Is flammable or explosive only
✓ C) Requires the vehicle to be placarded under 49 CFR Part 172
D) Is listed in the FMCSA regulations as hazardous
Any load requiring placarding per federal hazardous materials regulations (49 CFR
Part 172 Subpart F) mandates a hazmat endorsement on the CDL. The placarding
requirement triggers the endorsement, not simply the material's weight or category.
2. Which agency primarily enforces federal hazardous materials transportation
regulations?
, A) Federal Motor Carrier Safety Administration (FMCSA) only
✓ B) Pipeline and Hazardous Materials Safety Administration (PHMSA)
C) Environmental Protection Agency (EPA)
D) Department of Homeland Security (DHS)
PHMSA within the U.S. Department of Transportation develops and enforces the
Hazardous Materials Regulations (HMR). FMCSA enforces motor carrier safety,
including hazmat compliance for drivers, but PHMSA writes the rules.
3. A shipping paper for hazardous materials must include all of the following EXCEPT:
A) Proper shipping name
✓ B) Shipper's credit card number
C) Hazard class or division
D) Identification number
Shipping papers must contain the proper shipping name, hazard class/division, ID
number, packing group, total quantity, and emergency contact phone number.
Financial information is not required.
4. Where must a driver keep hazardous materials shipping papers while driving?
A) In a locked box under the passenger seat
✓ B) Within immediate reach while restrained, or in a pouch on the driver's
door
, C) In the trailer with the hazardous materials
D) In a briefcase in the sleeper berth
49 CFR §177.817(e) requires shipping papers to be within the driver's immediate
reach when the seat belt is fastened, or in a holder mounted to the inside of the
driver's door. They must be visible to first responders.
5. When a driver is away from the vehicle, shipping papers for hazardous materials
must be:
A) Left on the dashboard in plain view
B) Locked in the glove compartment
✓ C) Placed in a pouch on the driver's door or in plain view on the driver's seat
D) Taken with the driver at all times
When the driver is not in the vehicle, the papers must be either in the door pouch or
on the driver's seat, visible to emergency personnel entering the cab.
6. What is the minimum size required for a hazardous materials placard?
A) 8 inches by 8 inches
✓ B) 9.84 inches (250 mm) on each side
C) 12 inches by 12 inches
D) 10.5 inches by 10.5 inches
, Placards must be square-on-point and at least 250 mm (9.84 inches) on each side,
with a solid line inner border 12.7 mm from the edge.
7. A placard must be placed on a transport vehicle or freight container:
✓ A) On all four sides of the vehicle
B) Only on the front and rear
C) Only on the sides
D) On the rear only
Placards must be displayed on each side and each end of the vehicle, ensuring
visibility from all four directions.
8. Table 1 hazardous materials require placarding:
✓ A) For any quantity of the material
B) Only if over 1,001 pounds aggregate gross weight
C) Only when transported in bulk packaging
D) Only for international shipments
Table 1 materials (e.g., explosives, poisons by inhalation, radioactive Yellow III) must
always be placarded regardless of the amount. Table 2 materials require placarding
when aggregate gross weight is 1,001 pounds or more.
9. Which of the following is a Table 1 hazard requiring placards for any amount?
A) Gasoline (Class 3, PG II)
