When should hazardous materials be inspected during transport?

Answer: B — At the beginning and end of each trip

The correct choice emphasizes the importance of inspecting hazardous materials at both the beginning and end of each trip. This practice is critical for ensuring safety during transportation. By conducting inspections at these two key points, drivers can verify the integrity of the packaging, confirm that there are no leaks or damages, and ensure that the materials are secured properly. This proactive approach helps identify potential issues before they escalate, reducing risks to the driver, other road users, and the environment. Additionally, performing checks at the end of a trip can help assess whether any incidents occurred during transport, guiding appropriate responses and reporting as needed. Regular inspections are a necessary part of compliant and safe transport practices in handling hazardous materials.