Why: The FAA study guide states: "The Chart Supplement U.S. is published in seven books, which are organized by regions and are revised every 56 days."
Confuses the Chart Supplement's 56-day revision cycle with an annual cycle; no once-a-year-only schedule is stated in the source.
Invents a dependency between sectional-chart editions and Chart Supplement revisions; the source describes the Chart Supplement's own independent 56-day cycle.
UA.V.B.K6 · Source: remote_pilot_study_guide.pdf, p. 66 · Reviewed 2026-10-22