What is an important action to take before initiating a response at a hazmat incident?

Reviewing the Emergency Response Guidebook (ERG) is a critical action before initiating a response at a hazmat incident. The ERG provides essential information on how to handle hazardous materials, including general guidelines and specific response measures based on the type of substance involved. It helps responders understand the nature of the materials they may encounter, the potential hazards associated with them, safe handling practices, and necessary protective measures. This context is fundamental for ensuring the safety of both responders and the public, and for effectively mitigating the incident.

While gathering all available responders, setting up an evacuation area, and assessing the area for visible hazards are also important actions, they come after understanding the situation through the ERG. The ERG informs responders about the specific materials and risks they might face, shaping subsequent decisions regarding personnel mobilization, evacuation needs, and hazard assessment in the area. Without this critical knowledge from the ERG, other actions may not be taken effectively or safely.