What type of incidents is the Emergency Response Guidebook (ERG) primarily used for?

The Emergency Response Guidebook (ERG) is primarily designed for incidents involving the transportation of hazardous materials. It serves as a critical tool for first responders who are managing emergencies related to railways, roads, and other transportation methods where hazardous materials may be involved. The ERG provides essential information on how to respond to spills, leaks, or other incidents featuring dangerous goods during transit, including guidance on evacuation distances and protective measures.

While facilities can involve hazardous materials too, they are not the primary focus of the ERG. The specific context of transportation-related incidents is where the guidebook's utility is emphasized, helping responders quickly understand the risk and necessary actions. Thus, using the ERG for transportation incidents ensures first responders have access to critical information to effectively handle emergencies involving transported hazardous substances.