Which entry element serves as emergency extraction and relief?

• A. Command Post (CP)
• B. Initial entry element leader
• C. Emergency Personnel Decon Station
• D. Back-up entry element

Answer: (D)

In hazardous-entry operations, relief and extraction duties are handed to the team dedicated to backing up the initial entry. The back-up entry element is positioned to quickly relieve the first team and to perform emergency extraction of casualties or personnel from the danger area. This role keeps exposure times manageable, allows for rapid rotation, and ensures someone ready to pull people out and resecure the area if conditions change.

The command post is about coordinating the operation, not performing field extraction. The initial entry element leader guides the first team, but the specific task of emergency extraction and relief belongs to the back-up entry element. The emergency personnel decon station handles decontamination, not extraction.