You do not have a hazardous materials endorsement on your commercial drivers license. When can you drive a vehicle hauling hazardous materials?
a. Never
b. Only when the shipment will not cross state lines.
c. Only when the vehicle does not require placards.
d. Only when a person who has the hazardous materials endorsement rides in the vehicle.
Correct Answer: Only when the vehicle does not require placards.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.