If a bottle's hazard class is Flammable Liquid and its description includes Poison Inhalation Hazard, what placards should be used?

• A. Poison placards only
• B. Hazard class placards only
• C. Both poison and hazard class placards
• D. No placards are needed

Answer: (C)

When a hazmat shipment carries more than one hazard, you must display all applicable placards to communicate each risk. If the bottle is a Flammable Liquid, a hazard class placard with the flame symbol is required. If the description also includes Poison Inhalation Hazard, a PIH (poison) placard is required as well. Displaying both placards ensures responders know there is both a fire risk and a toxic inhalation risk, and there isn’t a provision to omit one hazard when another is present.