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Question 1
How many pounds (aggregate gross weight) of hazardous materials in a single class typically requires placards on a vehicle?
Answer: 1,001 pounds or more of a single class of hazardous materials requires placards.
Question 2
How many placards must be displayed on a vehicle transporting hazardous materials that requires placarding?
Answer: Four placards must be displayed — one on each side and one on each end of the vehicle.
Question 3
What shape are hazardous materials placards?
Answer: Placards are diamond-shaped (square set on a point), measuring at least 10¾ inches on each side.
Question 4
Regardless of amount or quantity, which hazmat class ALWAYS requires placards?
Answer: Class 7 (Radioactive) materials, as well as certain other materials like poison gases and explosives, always require placards regardless of quantity.
Question 5
What does a 'DANGEROUS' placard indicate?
Answer: A DANGEROUS placard may be used when transporting 1,001 to 5,000 pounds of two or more classes of hazardous materials that each require different placards.