What is the purpose of marking and labeling in hazmat shipments?

• A. To communicate hazards, packaging type, and handling requirements to all parties along the supply chain
• B. To increase packaging weight
• C. To indicate the shipper's address only
• D. To determine the price of shipping

Answer: (A)

Marking and labeling hazmat shipments communicates hazards, packaging type, and handling requirements to everyone along the supply chain. Clear, standardized markings tell handlers what the material is, its danger class, and how it must be stored, transported, or transported away in an emergency. They often include hazard class, UN number, proper shipping name, packing group, and handling or quarantine instructions, so carriers, warehouses, and emergency responders can act quickly and safely. This shared information helps prevent improper mixing with other goods, ensures the right equipment and containment are used, and guides responders if a spill or accident occurs.

Those markings aren’t about increasing weight, revealing only the shipper’s address, or setting shipping costs, so the other options don’t fit the purpose.