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Question:

Which of the following is NOT something you need to know in order to determine if you need to use placards?

A The manufacturing date for the materials
Explaination

Unless your organization has an additional obligation, you do not need to know when a product is made or expires. When it comes to hazardous materials, you must know the amount of hazardous material being transported, its hazard class, and the overall amount of hazardous materials of all classes that will be transported on your commercial vehicle during your trip.