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United States Department of Transportation United States Department of Transportation

Interagency Air Committee (IAC) Specifications

These specifications have been developed by the Interagency Air Committee (IAC), composed of representatives of the Department of Defense and the Federal Aviation Administration, for use in the preparation of the United States Government Charts. These specifications shall be complied with, without deviation, until such time as they are amended by formal IAC action.

Interagency Air Committee Specifications
Number Name Edition Date
IAC 1 Enroute Low Altitude Charts, US and Alaska (PDF) 20 February 2025
IAC 2 Sectional Aeronautical and Terminal Area Charts (PDF) 12 March 2025
IAC 2A Flyway Planning Chart (PDF) 26 April 2024
IAC 4 Instrument Approach Procedures (PDF) 11 March 2025
IAC 5 Enroute High Altitude Charts, US and Alaska (PDF) 20 February 2025
IAC 7 Graphic Instrument Departure Procedure Charts (PDF) 28 October 2024
IAC 8 Chart Supplement (PDF) 11 March 2025
IAC 9 Airport Diagrams (PDF) 11 March 2025
IAC 14 Standard Terminal Arrival Charts (PDF) 4 September 2024
IAC 15 Helicopter Route Charts (PDF) 12 March 2025
IAC 17 Terminal Procedures Publication (PDF) 11 March 2025

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