What type of information does the Emergency Response Guidebook provide regarding personal protective equipment?

The Emergency Response Guidebook (ERG) offers essential information regarding the appropriate levels of personal protective equipment (PPE) needed for defensive operations in response to hazardous materials incidents. This resource is crucial for first responders as it helps them identify the necessary protective gear to ensure their safety while managing potentially dangerous situations involving hazardous substances.

The guide outlines different PPE levels, which correspond to various types of hazards and potential exposure risks. By providing detailed descriptions of what PPE is required based on the materials involved, the ERG assists emergency responders in making informed decisions to protect themselves while effectively handling incidents.

The other options do not directly align with the core purpose of the ERG regarding protective equipment. Casualty statistics, decontamination procedures, and emergency contact numbers serve different roles in emergency response management, but the specific focus on PPE levels is a key feature of the ERG that is vital for operational safety during hazardous materials emergencies.