In which sections of the Emergency Response Guidebook would a first responder find entries indicating that a material poses a toxic inhalation hazard or is water reactive?

The first responder would find entries indicating that a material poses a toxic inhalation hazard or is water reactive primarily in the yellow and blue sections of the Emergency Response Guidebook. The yellow section provides a numeric index of hazardous materials, allowing responders to quickly identify the specific hazards associated with each material, including toxic inhalation risks. Meanwhile, the blue section presents information categorized alphabetically, which can include various chemicals that are reactive with water or pose other significant hazards.

This organization is designed for easy access, so first responders can quickly obtain critical information about handling hazardous materials while ensuring safety protocols are followed.