AIM DECODED

9-1-1. General

AIM Text

Civil aeronautical charts for the U.S. and its territories, and possessions are produced by Aeronautical Information Services (AIS), https://www.faa.gov/air_traffic/flight_info/aeronav/safety_alerts/ which is part of FAA's Air Traffic Organization, Mission Support Services.

Source: FAA Aeronautical Information Manual · current edition · paragraph 9-1-1.

Research Notes

AIM 9-1-1 introduces Aeronautical Charts and Related Publications — the chart and publication system used for U.S. aviation.

Major chart types:

  • VFR Sectional: 1:500,000 scale. The primary VFR chart. Updated every 56 days.
  • Terminal Area Chart (TAC): 1:250,000 scale. Detail around Class B airports.
  • VFR Flyway: Suggested VFR routes in Class B areas. Reverse side of TACs.
  • IFR Enroute Low: Low-altitude IFR routes (below 18,000 MSL).
  • IFR Enroute High: High-altitude IFR routes (FL180+).
  • Approach Plates: Individual instrument approach procedures, published per airport.
  • Airport Diagrams: Detailed airport layout for ground operations.

Publishers:

  • FAA — the authoritative publisher for U.S. aviation charts
  • Jeppesen — commercial chart publisher used by many airlines and business operators
  • EFB apps (ForeFlight, Garmin Pilot) — digital chart displays with various publishers

Reference: AIM 9; FAA-H-8083-25 Chapter 16.