HazMat Placarding and Labeling Flashcards

Which placard class number represents explosives?

Answer: Class 1

Class 1 is the hazard class for explosives, subdivided into Divisions 1.1 through 1.6 based on explosion risk.

What must you do if you discover a placard is damaged or unreadable during a trip?

Answer: Replace the placard before moving the vehicle if safe to do so

Regulations require placards to be legible and in good condition; damaged or unreadable placards must be replaced before continuing when safe.

Which hazard class uses a yellow background placard?

Answer: Oxidizers and organic peroxides

Oxidizers (Class 5.1) and organic peroxides (Class 5.2) use yellow background placards to indicate their oxidizing potential.

How far must a placard be visible from?

Answer: 100 feet

Placards must be visible from a distance of at least 100 feet under normal conditions to provide adequate warning to others.

What is required when transporting Division 1.1 or 1.2 explosives?

Answer: Specific EXPLOSIVES 1.1 or 1.2 placard and no other class placard

Division 1.1 and 1.2 explosives require specific placards (EXPLOSIVES 1.1 or EXPLOSIVES 1.2) and regulations prohibit using a DANGEROUS placard for these materials.

Which marking must appear on both the shipping paper and the package when transporting marine pollutants?

Answer: MARINE POLLUTANT or the fish-and-tree symbol

Marine pollutants must be identified with the words MARINE POLLUTANT or the fish-and-dead-tree symbol on both packages and shipping papers.