Which activity is critical during HAZMAT transportation?

All activities listed—loading procedures, route planning, and driver training—are crucial in ensuring safe and effective HAZMAT transportation. Loading procedures are essential to minimize the risk of spills or leaks by ensuring materials are properly secured and packaged according to regulations. Route planning is vital to avoid populated areas, hazardous terrain, and sensitive environments, which could mitigate the potential impact in case of an accident. Driver training provides the necessary skills and knowledge to safely handle and respond to incidents involving hazardous materials, making sure that drivers are prepared for the unique challenges associated with transporting such materials. Collectively, these elements play a significant role in maintaining safety and compliance throughout the transportation process.