Which information is crucial when reporting about hazardous materials on the radio?

When reporting about hazardous materials on the radio, the chemical name and DOT reference number are vital pieces of information. The chemical name provides clarity regarding the specific substance involved, which is essential for understanding its properties, potential hazards, and any safety measures required when handling it. The DOT reference number, assigned by the Department of Transportation, provides a standardized identifier that can help responders quickly access information about the material, including its classifications, safety data sheets, and emergency response guidelines.

Having this detailed identification allows emergency response teams to take appropriate action, ensuring the safety of both responders and the public. This information is critical for assessing risks, evaluating the necessity of evacuations, and determining the resources required for effective containment and cleanup during a hazardous materials incident.