In the Emergency Response Guidebook, the table of initial isolation and protective action distances for a highlighted chemical is found in which color-bordered section?

• A. Green-bordered
• B. Blue-bordered
• C. Yellow-bordered
• D. Orange-bordered

Answer: (A)

The ERG uses color borders to guide you to different kinds of information. The table of initial isolation and protective action distances for a highlighted chemical is found in the green-bordered section because that color is designated for the quick-reference distances you use at the scene to set up the safety perimeter and decide on evacuation or sheltering actions. The distances shown are what responders need to protect themselves and the public, and they vary by chemical and scenario, so you go to the green-bordered pages to pull them. Other colors point to different content (health and safety data, hazard classifications, and general incident guidance), which is why that specific table isn’t in those sections.