For reference purposes the 12th Edition of the Aeronautical Chart User's Guide is available in a pdf format for download. Due to the large file size we recommend that you use a broadband internet connection to reduce the download time.

Warning: Some dial-up internet service providers may time out while downloading large files.

This publication includes explanations of all symbology used on World Aeronautical Charts, Sectional Aeronautical Charts, Terminal Area Charts, Flyway Planning Charts, Helicopter Route Charts, Enroute Low Altitude Charts, Enroute High Altitude Charts, Area Charts, Oceanic Route Charts, Standard Terminal Arrival Routes, Standard Instrument Departures, Instrument Approach Procedures.

Aeronautical Chart User's Guide (PDF, 22.17 MB)

Should you discover or encounter an error in any of our products, you are encouraged to contact us immediately. Before you do however, please check the Alerts/Notices webpage to see if the error has been previous discovered or resolved. FAA has no effective way to contact every individual that has downloaded a digital product; therefore, you are requested to check the Alerts/Notices webpage often.