Who is responsible for ensuring that a hazardous materials shipment is correctly named, labeled, and marked?

The responsibility for ensuring that a hazardous materials shipment is correctly named, labeled, and marked primarily falls on the shipper. The shipper is the entity or person who prepares the hazardous materials for transportation and must ensure compliance with all regulations, including proper naming, labeling, and marking according to the Department of Transportation (DOT) and other regulatory requirements.

While the driver and the carrier have roles in transporting the materials, their responsibilities do not extend to the initial labeling and marking of the materials being shipped. The driver may ensure that the materials are being transported according to regulations, but it is not their duty to verify or prepare the labeling. The carrier also plays a part in the transportation process but relies on the shipper to meet the necessary regulatory standards before accepting the shipment.

Regulatory agencies oversee compliance and enforce regulations, but they do not handle the physical preparation of shipments. They establish the framework that shippers must follow but do not take on the responsibility for individual shipments.

Therefore, the correct answer highlights the shipper's crucial role in ensuring that hazardous materials shipments comply with all necessary regulations concerning naming, labeling, and marking.