Use the full identification in reply to aircraft with similar sounding identifications. For other aircraft, the same identification may be used in reply that the pilot used in his/her initial callup except use the correct identification after communications have been established. Identify aircraft as follows:
NOTE: If aircraft identification becomes a problem when the procedures specified above are used, the call sign must be restated after the flight number of the aircraft involved.
NOTE: “Group form” is the pronunciation of a series of numbers as the whole number, or pairs of numbers they represent rather than pronouncing each separate digit. The use of group form may, however, be negated by four-digit identifiers or the placement of zeros in the identifier.
NOTE: Air carrier and other civil aircraft having FAA authorized call signs may be pronounced using single digits if necessary for clarity.
NOTE: If aircraft identification becomes a problem, the procedures reflected in FAA Order JO 7210.3, Facility Operation and Administration, para 2-1-14, Aircraft Identification Problems, will apply.
NOTE: When the “Z” suffix described in para 2-3-7, USAF/USN Undergraduate Pilots, is added to identify aircraft piloted by USAF undergraduate pilots, the call sign will be limited to a combination of six characters.
|Secretary of Transportation||DOT-1||Transport-1|
|Deputy Secretary of Transportation||DOT-2||Transport-2|
|Administrator, Federal Aviation Administration||FAA-1||Safeair-1|
|Deputy Administrator, Federal Aviation Administration||FAA-2||Safeair-2|
NOTE: Letters may be spoken individually or phonetically.