Which of the following is used for the transportation of hazardous materials?

The use of Transport Canada placards is essential for the transportation of hazardous materials because these placards serve as visual indicators of the type of hazardous materials being transported. Each placard is specifically designed to communicate the nature of the hazard, such as flammability, toxicity, or corrosiveness, allowing for immediate recognition by responders and the public. This is critical for safety purposes, ensuring that anyone who encounters the transport vehicle is informed about potential risks, thereby enabling them to take appropriate precautions.

The role of common shipping labels, while relevant in identifying contents, does not provide the same level of immediate hazard recognition as placards do, especially in an emergency situation. Safety Data Sheets (SDS) are important documents that provide detailed information about the hazards, handling, and emergency measures related to specific materials, but they are typically not used in the immediate transport scenario. Material Safety Labels are also informative but do not carry the same regulatory weight or visibility as Transport Canada placards in the context of transportation.