What should be done first when approaching a hazmat incident?

When approaching a hazardous materials (hazmat) incident, assessing the situation and identifying hazards is the crucial first step. This action is essential because it allows responders to understand the scope of the incident, the types of materials involved, and the potential risks to human health and safety, as well as the environment. Recognizing these hazards helps responders to make informed decisions about subsequent actions, such as evacuation, establishing command, and organizing cleanup operations.

By focusing on the assessment first, first responders can gather vital information concerning the nature of the materials (e.g., whether they are flammable, toxic, or corrosive), the quantity spilled, and the environmental conditions surrounding the incident. This information is vital for determining the safest and most effective response strategy. Therefore, without a thorough assessment, any further actions could put responders and the public at greater risk, potentially exacerbating the situation.