If the nature of a situation is unknown on the scene, which guide in the ERG should you refer to?

When dealing with a situation where the nature of a hazardous materials incident is unknown, it is essential to refer to the appropriate guide in the Emergency Response Guidebook (ERG) that helps responders assess and manage the situation safely. In this context, Guide 111 is specifically designed for cases where the type of material involved is not identified.

Guide 111 provides valuable information on how to handle unknown situations, including safety precautions, isolation strategies, and recommendations for protective equipment. It assists first responders in taking the necessary actions to protect themselves and the public while further assessing the situation.

Utilizing Guide 111 allows responders to approach the incident with the correct level of caution and ensures they are equipped with general guidelines that apply when the specific materials involved remain unidentified. This adaptability makes it an appropriate choice when faced with uncertainty at the scene.