True or False: Hazmat bulk shipments require a four-digit ID number.

Hazmat bulk shipments are indeed required to utilize a four-digit ID number as part of the classification and identification system for hazardous materials. This four-digit number is assigned by the United Nations and serves to identify the specific type of hazardous material being transported. It is crucial for emergency responders and transport personnel to quickly recognize the nature of the material, which aids in ensuring safety during transport and in the event of an incident.

The use of a four-digit ID number is a critical component of the standardized documentation and labeling system that governs the transportation of hazardous materials. This requirement helps facilitate proper handling and response measures, thereby enhancing safety protocols for both the shipment and any potential emergencies that may arise during transport. Thus, the statement is true.