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A 'DANGEROUS' placard may be used in place of multiple specific placards when?
- A.When a vehicle carries a qualifying mix of different hazmat classes in non-bulk packages within the weight rules for that option, except when a specific placard is still required for the most hazardous materials
- B.For any load including bulk explosives
- C.Whenever the driver prefers fewer placards
- D.For radioactive loads of any size
Correct answer
A. When a vehicle carries a qualifying mix of different hazmat classes in non-bulk packages within the weight rules for that option, except when a specific placard is still required for the most hazardous materials
Why
The DANGEROUS placard is an efficiency for mixed loads of certain classes totaling the threshold amounts, but it never replaces placards required for materials such as Division 1.1 explosives or poison inhalation hazards. Misusing it hides the true hazard from responders.
Manual topic: HazMat - Dangerous Placard · From the General Knowledge practice bank (GK-350).