How many pages of the Emergency Response Guidebook contain information on Guide 125?

The Emergency Response Guidebook is a crucial resource for first responders dealing with hazardous materials incidents. Guide 125 specifically addresses the response protocols for various chemicals, including those that may possess particular hazards.

The correct choice indicates that the information for Guide 125 is located on pages 188-189, which aligns with the way the guide is formatted and structured. Each guide typically spans a specific range of pages, and for substances or situations outlined in Guide 125, the detailed response instructions, safety measures, and emergency protocols can be found within this page range.

Understanding which pages contain the information for each guide is vital for effective emergency response. Familiarity with this resource enables responders to quickly access instructions and safety recommendations, enhancing the ability to mitigate risks associated with hazardous substances.