Coded Departure Routes (CDR)
CDRs are meant to reduce workload between various ATC facilities. They are also meant to reduce frequency congestion by minimizing read-back time between ATC and pilots when alternate route clearances are needed due to weather conditions.
Each CDR is assigned an eight-character code to represent a predefined route between specific city pairs.
A city pair may have more than one CDR.
There are roughly 15,000 CDRs in effect at the present time.
If a CDR exists between your departure and arrival airport on FltPlan.com, you will see a button at the bottom of the Nearby Routes display on the Flight Plan Data Entry Page.
There is also a button on the our Main Menu Page which will allow you to check for existing CDRs between city pairs.
General information and procedures concerning Coded Departure Routes:
Request a full route clearance if there is any doubt of understanding the abbreviated clearance.
Tell the controller you are unable to accept a CDR if the aircraft is not properly equipped to fly the issued CDR. For example, some CDRs may require HF communication or Area Navigation capability.
You must have on board all current CDRs for the specific city pair you are expecting to fly.
Put the phrase “CDR CAPABLE” in the remarks section of your flight plan. You may still receive a reroute if ATC deems it necessary, but no abbreviated clearance will be issued.
Some CDRs add hundreds of miles to your normal route between city pairs. Special consideration must be given to fuel requirements and IFR fuel reserves.
The flight crew is responsible for maintaining a current database of CDRs.
Any questions pertaining to the use of CDR procedures may be directed to:
NY TRACON - Tom White – thomas.white@faa.gov – (516-683-2980)
NY CENTER – Bob Ocon – robert.ocon@faa.gov – (631-468-1015)
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