Under the Transportation of Dangerous Goods Act, which statement about labeling and markings is correct?

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Communicating hazards in transit relies on both labeling and markings. The Transportation of Dangerous Goods Act requires that every container or package carrying dangerous goods carry the appropriate labels and markings so handlers and emergency responders can identify the hazard, the content, and how to manage it safely. Labels display the hazard class and pictograms; markings provide the written information such as the product name, shipping name, UN number, class, and any handling instructions. Both labeling and markings are required; placards can be used for large shipments, but small containers still need proper labeling and markings, and they cannot be optional. Having both ensures consistent recognition across transport modes and jurisdictions and helps prevent accidents and confusion during handling, transfer, or in an emergency.