Which display indicates you are approaching the End of Authority?

Which display indicates you are approaching the End of Authority?

• A. Yellow Hash Box
• B. Red Track Line and Red Hash Box
• C. Blue Hash Box
• D. Green Line

Answer: (B)

Displays use color-coded cues to show the boundary where ATC authority ends, and the red track line with a red hash box marks the End of Authority. The red color signals urgency and a critical boundary, while the track line defines the path or area and the red hash box pinpoints your position relative to that boundary. This combination is specifically designed to alert you that you are at or approaching the point where ATC’s explicit control ends and you must rely on your own navigation and published procedures. Other colors and symbols denote caution, status, or different waypoints, but they do not indicate the End of Authority, so they’re not the correct cue here. As you reach this boundary, be ready to proceed under your own navigation and await the next clearance or handoff.

Displays use color-coded cues to show the boundary where ATC authority ends, and the red track line with a red hash box marks the End of Authority. The red color signals urgency and a critical boundary, while the track line defines the path or area and the red hash box pinpoints your position relative to that boundary. This combination is specifically designed to alert you that you are at or approaching the point where ATC’s explicit control ends and you must rely on your own navigation and published procedures. Other colors and symbols denote caution, status, or different waypoints, but they do not indicate the End of Authority, so they’re not the correct cue here. As you reach this boundary, be ready to proceed under your own navigation and await the next clearance or handoff.