What is TRO's LOP for a participant hookup?

• A. Figure-eight knot on a bight
• B. Bowline on a bight with a double overhand safety knot
• C. Clove hitch with a stopper knot
• D. Sheet bend with backup knot

Answer: (B)

For a participant hookup, the connection should be a fixed, secure loop that stays in place under load and is easy to inspect and untie afterward. A bowline on a bight creates that reliable fixed loop around the harness attachment point, which is important because it won’t tighten or slip as the participant moves. Adding a double overhand safety knot around the standing part locks the loop in place, preventing the main knot from loosening or the loop from slipping through during loading. This combination gives a strong, dependable link for protection, while still being practical to inspect and release.

The other options either rely on knots that can slip or shift or are meant for joining ropes rather than forming a single, stable hookup to a harness, making them less suitable for a secure Line of Protection hookup.