Practice question

Which statement about Class 9 placarding for domestic highway transportation is most accurate?

Class 9 placards are generally not required domestically, though markings and papers may still be required
Class 9 placards are always required for one pound
Class 9 materials are never regulated
Class 9 materials must use poison gas placards

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

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