Practice question

Which statement about Class 9 placards is generally true for U.S. domestic highway transportation?

Class 9 placards are generally not required domestically, though markings may be required
Class 9 always requires EXPLOSIVES placards
Class 9 eliminates shipping papers
Class 9 means the material is not hazardous

Answer: A — Class 9 placards are generally not required domestically, though markings may be required

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