SCRIPT 2026 PRACTICE SOLUTIONS
GRADED A+
● What types of materials are classified as hazardous? Answer:
Explosives, gases, solids, flammable liquids, and other materials that
pose a risk to health, safety, and property.
● Where can the Hazardous Materials Regulations (HMR) be found?
Answer: In parts 171-180 of title 49 of the Code of Federal Regulations.
● What is the common reference for the Hazardous Materials
Regulations? Answer: 49 CFR 171-180.
● What is required for individuals applying for a HAZMAT
Endorsement on their CDL? Answer: A Federal Security Threat
Assessment.
● What must vehicles transporting hazardous materials display?
Answer: Diamond-shaped, square on point, warning signs called
placards.