Which orange ERG page is used to determine the safe minimum distance from a mixed load or unidentified cargo incident?

• A. Guide Page 111
• B. Guide Page 77
• C. Guide Page 200
• D. Guide Page 155

Answer: (A)

When you’re dealing with a mixed load or unidentified cargo, you can’t rely on a single known substance page. The ERG provides a mixed-load/unknown-cargo section in the orange pages that gives the safe minimum distance to isolate the incident. Guide Page 111 is the page that contains these Initial Isolation Distance guidelines for unknown or mixed loads, helping responders quickly establish a protective perimeter and reduce exposure risk while the cargo is identified or further actions are determined. The other pages point to different, specific scenarios or known materials, so they don’t apply to a mixed-load or unidentified-cargo situation.