Concentric rings on instrument approach procedure charts are dashed-line circles outside the reference circle that show en route and feeder facilities.

• A. Dashed-line circles outside the reference circle that show en route and feeder facilities.
• B. A dashed-line circle indicating weather radar coverage.
• C. The central reference circle on the chart.
• D. Dashed-line circles depicted inside the reference circle.

Answer: (A)

These dashed concentric rings depict the coverage area of en route navigation facilities and their feeder routes, shown as circles outside the chart’s reference circle. They help you gauge which en route facilities and feeder connections are available as you transition from en route navigation to the approach. They aren’t weather radar coverage, they aren’t the central reference circle itself, and they aren’t drawn inside the reference circle. So this description matches what you actually see on instrument approach procedure charts.