A notice and sign would be two details from placard.
What is the importance of placards?
- A placard, also known as a little card, sign, or plaque, is a message that is posted in a public area. It can be hung from or affixed to a structure or vehicle to display details about the building or vehicle's occupants or contents.
- It can also refer to notices or signs made of paperboard that picketers or protesters carry.
- The sort of risk that the hazardous substance being delivered poses is identified on placards. They are a crucial part of a global system of hazard notification that also includes specifications for shipping paper, package marking, and labelling.
- A poster or notification intended for public exhibition. 2. a little plaque or card. transitive verb.
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