What should responders do first upon identifying a hazardous material incident?

Identifying the material and assessing risks is crucial in a hazardous material incident because it allows responders to understand the specific threats posed by the substance involved. This initial assessment informs the necessary actions to take, including whether evacuation is needed, how to contain or mitigate the situation, and the appropriate safety precautions for responding personnel.

By determining the type of hazardous material, its physical and chemical properties, and potential risks to health and the environment, responders can develop an effective action plan. This assessment is key to ensuring the safety of both the responders and the public, as well as effectively managing the incident. Without this vital information, actions taken could lead to greater dangers and complications.