Control Symbology

Use authorized control and clearance symbols or abbreviations for recording clearances, reports, and instructions. Control status of aircraft must always be current. You may use:

1. Plain language markings when it will aid in understanding information.
2. Locally approved identifiers. Use these only within your facility and not on teletypewriter or interphone circuits.
3. Plain sheets of paper or locally prepared forms to record information when flight progress strips are not used. (See TBL 2-3-11 and TBL 2-3-12.)
4. Control Information Symbols.
   (See FIG 2-3-7 and FIG 2-3-8.)

   TBL 2-3-11 Clearance Abbreviations

   Abbreviation	Meaning
   A	Cleared to airport (point of intended landing)
   B	Center clearance delivered
   C	ATC clears (when clearance relayed through non-ATC facility)
   CAF	Cleared as filed
   D	Cleared to depart from the fix
   F	Cleared to the fix
   H	Cleared to hold and instructions issued
   L	Cleared to land
   N	Clearance not delivered
   O	Cleared to the outer marker
   PD	Cleared to climb/descend at pilot's discretion
   Q	Cleared to fly specified sectors of a NAVAID defined in terms of courses, bearings, radials or quadrants within a designated radius.
   T	Cleared through (for landing and takeoff through intermediate point)
   V	Cleared over the fix
   X	Cleared to cross (airway, route, radial) at (point)
   Z	Tower jurisdiction

   TBL 2-3-12 Miscellaneous Abbreviations

   Abbreviation	Meaning
   BC	Back course approach
   CT	Contact approach
   FA	Final approach
   FMS	Flight management system approach
   GPS	GPS approach
   I	Initial approach
   ILS	ILS approach
   MA	Missed approach
   NDB	Nondirectional radio beacon approach
   OTP	VFR conditions-on-top
   PA	Precision approach
   PT	Procedure turn
   RA	Resolution advisory (Pilot reported TCAS event)
   RH	Runway heading
   RNAV	Area navigation approach
   RP	Report immediately upon passing (fix/altitude)
   RX	Report crossing
   SA	Surveillance approach
   SI	Straight-in approach
   TA	TACAN approach
   TL	Turn left
   TR	Turn right
   VA	Visual approach
   VR	VOR approach