Coded Departure Routes (CDRs) Format The CDR.TXT file is a comma delimited ascii text file. There are six data fields, as described below, separated by commas. The records are variable length. The file accompanying this format can also be downloaded from the Air Traffic System Command Center’s web site located at WWW.ATCSCC.FAA.GOV. The file and other information regarding CDRs or SWAPs can be found at that site under PRODUCTS/Coded Departure Routes. The format the file is as follows: ..Field.. ..Example.. Route Code: ORDLAX01 Origin: KORD Destination: KLAX Departure Fix: MZV Route String: KORD MZV LMN J64 CIVET CIVET4 LAX ARTCC: KZAU