What type of incident is an ERG typically used for?

The Emergency Response Guidebook (ERG) is primarily designed for use in transportation incidents involving hazardous materials. This resource provides crucial information to first responders on how to secure the scene, identify hazardous substances, and take necessary actions to protect life, property, and the environment during such incidents.

The guides are particularly valuable during the transportation of hazardous materials by road and rail, where incidents can involve spills, leaks, or other dangerous situations. The ERG helps responders quickly determine the appropriate response plan and safety measures to take, which is essential for both immediate action and long-term mitigation of any hazardous effects.

While the ERG can contain some pertinent information relevant to facilities or fixed-site incidents, its primary focus and comprehensiveness are geared towards scenarios involving the transportation of hazardous materials. Thus, stating that the correct answer relates specifically to transportation incidents aligns with the ERG's intended application.