What is a hazardous materials placard? CDL What is a hazardous materials placard?Answer: Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+
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.