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Question:

To determine if you need to use placards, which of the following do you NOT need to know?

A The manufacturing date of the materials
Explaination

You do not need to know when a product is manufactured or has expired unless your company has an additional responsibility. You do need to know the amounts of the hazardous materials being shipped, their hazard classes, and the total amount of all the hazardous materials of all the hazard classes on your commercial vehicle.