DOT HAZMAT TRANSPORTATION SAFETY
CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A
2026|INSTANT DOWNLOAD PDF
1. What is the primary purpose of the DOT Hazardous
Materials Regulations (HMR)?
A. To increase shipping speed
B. To ensure safe transportation of hazardous materials in
commerce
C. To reduce shipping costs
D. To eliminate all chemical transportation
Rationale: The HMR focuses on safety in transport, not cost or
speed.
Correct Answer: B
2. Which agency enforces the Hazardous Materials
Regulations in the United States?
A. OSHA
B. EPA
C. Pipeline and Hazardous Materials Safety Administration
(PHMSA)
D. FBI
,Rationale: PHMSA under DOT regulates hazardous materials
transportation.
Correct Answer: C
3. What document is required when shipping hazardous
materials?
A. Medical report
B. Hazardous Materials Shipping Paper
C. Insurance certificate
D. Employee ID
Rationale: Shipping papers provide required hazard
communication.
Correct Answer: B
4. What does the term “hazardous material” refer to?
A. Any liquid substance
B. Any material posing risk to health, safety, or property during
transport
C. Only explosive substances
D. Only radioactive materials
Rationale: HazMat includes any material regulated due to risk.
Correct Answer: B
,5. What is the function of a UN number on hazardous
materials?
A. Identifies employee handling the material
B. Identifies a specific hazardous substance internationally
C. Shows shipping cost
D. Replaces labeling requirements
Rationale: UN numbers standardize identification globally.
Correct Answer: B
6. Which of the following is a Class 1 hazardous material?
A. Flammable liquid
B. Explosives
C. Corrosive material
D. Radioactive material
Rationale: Class 1 refers to explosives.
Correct Answer: B
7. What is required on a hazardous material package?
A. Weather forecast
B. Proper shipping name, label, and UN number
C. Driver’s license
D. Delivery receipt only
Rationale: Proper identification and labeling are required.
Correct Answer: B
, 8. Who is responsible for properly classifying hazardous
materials?
A. The receiver
B. The shipper
C. The driver only
D. The warehouse clerk only
Rationale: Shippers are responsible for classification.
Correct Answer: B
9. What does the Hazard Class indicate?
A. Shipping cost
B. Type of hazard posed by the material
C. Delivery speed
D. Manufacturer location
Rationale: It identifies the nature of the hazard.
Correct Answer: B
10. Which hazard class includes flammable liquids?
A. Class 2
B. Class 3
C. Class 4
D. Class 5
CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A
2026|INSTANT DOWNLOAD PDF
1. What is the primary purpose of the DOT Hazardous
Materials Regulations (HMR)?
A. To increase shipping speed
B. To ensure safe transportation of hazardous materials in
commerce
C. To reduce shipping costs
D. To eliminate all chemical transportation
Rationale: The HMR focuses on safety in transport, not cost or
speed.
Correct Answer: B
2. Which agency enforces the Hazardous Materials
Regulations in the United States?
A. OSHA
B. EPA
C. Pipeline and Hazardous Materials Safety Administration
(PHMSA)
D. FBI
,Rationale: PHMSA under DOT regulates hazardous materials
transportation.
Correct Answer: C
3. What document is required when shipping hazardous
materials?
A. Medical report
B. Hazardous Materials Shipping Paper
C. Insurance certificate
D. Employee ID
Rationale: Shipping papers provide required hazard
communication.
Correct Answer: B
4. What does the term “hazardous material” refer to?
A. Any liquid substance
B. Any material posing risk to health, safety, or property during
transport
C. Only explosive substances
D. Only radioactive materials
Rationale: HazMat includes any material regulated due to risk.
Correct Answer: B
,5. What is the function of a UN number on hazardous
materials?
A. Identifies employee handling the material
B. Identifies a specific hazardous substance internationally
C. Shows shipping cost
D. Replaces labeling requirements
Rationale: UN numbers standardize identification globally.
Correct Answer: B
6. Which of the following is a Class 1 hazardous material?
A. Flammable liquid
B. Explosives
C. Corrosive material
D. Radioactive material
Rationale: Class 1 refers to explosives.
Correct Answer: B
7. What is required on a hazardous material package?
A. Weather forecast
B. Proper shipping name, label, and UN number
C. Driver’s license
D. Delivery receipt only
Rationale: Proper identification and labeling are required.
Correct Answer: B
, 8. Who is responsible for properly classifying hazardous
materials?
A. The receiver
B. The shipper
C. The driver only
D. The warehouse clerk only
Rationale: Shippers are responsible for classification.
Correct Answer: B
9. What does the Hazard Class indicate?
A. Shipping cost
B. Type of hazard posed by the material
C. Delivery speed
D. Manufacturer location
Rationale: It identifies the nature of the hazard.
Correct Answer: B
10. Which hazard class includes flammable liquids?
A. Class 2
B. Class 3
C. Class 4
D. Class 5
