Digital En-Route Supplement

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The Digital En-Route Supplement is specifically designed to provide digital airspace data not otherwise readily available. The supplement is produced every 56 days coinciding with the airspace cycle and includes a Change Notice at the mid-point between revisions. The individual sections are:

• High Altitude Airways (Conterminous United States)
• Low Altitude Airways (Conterminous United States)
• Selected Instrument Approach Procedure NAVAID And Fix Data
  (Includes a 28-Day Change Notice)
• Military Training Routes
• Alaska, Hawaii, Puerto Rico, Bahamas, and Selected Oceanic Routes
• STARs - Standard Terminal Arrivals and Profile Descent Procedures
• DP - Departures Procedures

Additions and revisions are indicated by an appropriate symbol next to the changed item. Where applicable, deletions are identified in the back of each section. Selected Instrument Approach Procedure NAVAID and Fix Data is an alphabetical listing of IAP airports by state, city and airport.

Notice: AeroNav Products will no longer be providing the Digital Aeronautical Chart Supplement (DACS) files as a public product after the August 25, 2011 effective date. Please see the Public DERS Letter for complete information.

After you have downloaded the DERS Zip File and saved it to your hard drive, use an unzip utility to extract the files.

For additional information read . . . .DERS_README.PDF

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. The FAA has no effective way to contact every individual that has viewed a digital product; therefore, you are requested to check the Safety Alerts webpage often.

The DERS Online Change Notice is the only way to update your Digital En-Route Supplement at its mid-cycle. Refer to the DERS Change Notice page.