What does the HAZMAT class number identify on information placards?

The HAZMAT class number on information placards is designed to identify the specific hazard associated with the material being transported. This system allows responders to quickly understand the nature of the materials involved in a shipment, which is crucial for ensuring safety during transportation and in the event of an incident. Each class number corresponds to different categories of hazards, such as flammable liquids, toxic substances, or corrosive materials. This classification helps in determining the appropriate emergency response measures and the risks that may be present, thereby facilitating effective and safe handling of hazardous materials throughout the shipping process. By designating hazards clearly, these placards serve as essential communication tools for emergency responders and other stakeholders.