JO 7110.65 — Air Traffic Control
JO 7110.65 1-2-6
ABBREVIATIONS
As used in this order, the abbreviations listed below have the following meanings indicated. (See TBL 1-2-1 .)
TBL 1-2-1 FAA Order JO 7110.65 Abbreviations Abbreviation
Meaning
AAO
Adverse Assumption Obstacle
AAR
Adapted arrival route
AAR
Airport arrival rate
AC
Advisory Circular
ACC
Area Control Center
ACE-IDS
ASOS Controller Equipment- Information Display System
ACL
Aircraft list
ACLS
Automatic Carrier Landing System
ADAR
Adapted departure arrival route
ADC
Aerospace Defense Command
ADIZ
Air Defense Identification Zone (to be pronounced “AY DIZ”)
ADR
Adapted departure route
ADS
Automatic Dependent Surveillance
ADS-B
Automatic Dependent Surveillance-Broadcast
ADS-C
Automatic Dependent Surveillance-Contract
AFP
Airspace Flow Program
AIDC
ATS Interfacility Data Communications
AIM
Aeronautical Information Manual
AIRMET
Airmen's meteorological information
ALDARS
Automated Lightning Detection and Reporting System
ALERFA
Alert phase code (Alerting Service)
ALNOT
Alert notice
ALS
Approach Light System
ALTRV
Altitude reservation
AM
Ambiguity-A disparity greater than a locally adapted distance exists between the position declared for a target by MEARTS and another facility's computer declared position during interfacility handoff
AMASS
Airport Movement Area Safety System
AMB
Ambiguity-A disparity greater than a locally adapted distance exists between the position declared for a target by STARS and another facility's computer declared position during interfacility handoff
AMVER
Automated Mutual Assistance Vessel Rescue System
ANG
Air National Guard
APR
ATC preferred route
APREQ
Approval Request
ARAC
Army Radar Approach Control facility (US Army)
ARINC
Aeronautical Radio Incorporated
ARIP
Air refueling initial point
ARSR
Air route surveillance radar
ARTCC
Air Route Traffic Control Center
ASD
Aircraft Situation Display
ASDE
Airport surface detection equipment
ASDE-X
Airport Surface Detection Equipment System - Model X
ASF
Airport Stream Filters
ASOS
Automated Surface Observing System
ASR
Airport surveillance radar
ASSC
Airport Surface Surveillance Capability
ATC
Air traffic control
ATCAA
ATC assigned airspace
ATCSCC
David J. Hurley Air Traffic Control System Command Center
ATD
Along-Track Distance
ATIS
Automatic Terminal Information Service
ATO
Air Traffic Organization
ATO COO
Air Traffic Organization Chief Operating Officer
ATOP
Advanced Technologies and Oceanic Procedures
ATS
Air Traffic Service
AWOS
Automated Weather Observing System
BASE
Cloud base
CA
Conflict Alert
CAA
Confirm assigned altitude
CARCAH
Chief, Aerial Reconnaissance Coordination, All Hurricanes
CARF
Central Altitude Reservation Function
CAT
Clear air turbulence
CCF
Combined Control Facility
CDT
Controlled departure time
CEP
Central East Pacific
CFR
Code of Federal Regulations
CFR
Call for Release
CIC
Controller-in-Charge
CNS
Continuous
CPDLC
Controller Pilot Data Link Communications
CPME
Calibration Performance Monitor Equipment
CTA
Control Area
CTRD
Certified Tower Radar Display
CVFP
Charted Visual Flight Procedure
CWA
Center Weather Advisory
DCL
Departure Clearance
DETRESFA
Distress Phase code (Alerting Service)
DH
Decision height
DL
Departure List
DME
Distance measuring equipment compatible with TACAN
DOE
Department of Energy
DP
Instrument Departure Procedure
DR
Dead reckoning
DRT
Diversion recovery tool
DSR
Display System Replacement
DTAS
Digital Terminal Automation Systems
DTM
Digital Terrain Map
DVFR
Defense Visual Flight Rules
DVRSN
Diversion
EA
Electronic Attack
EAM
Emergency Altitude Map
EAS
En Route Automation System
EDCT
Expect Departure Clearance Time
EDST
En Route Decision Support Tool
EFC
Expect further clearance
EFVS
Enhanced Flight Vision System
ELDB
Enhanced Limited Data Block
ELP
Emergency Landing Pattern
ELT
Emergency locator transmitter
EoR
Established on RNP
EOVM
Emergency obstruction video map
EOS
End Service
ERAM
En Route Automation Modernization
ERIDS
En Route Information Display System
ERT
Embedded route text
ETA
Estimated time of arrival
FAA
Federal Aviation Administration
FANS
Future Air Navigation System
FDB
Full Data Block
FDIO
Flight Data Input/Output
FDP
Flight data processing
FICON
Field Condition
FIR
Flight Information Region
FL
Flight level
FLIP
Flight Information Publication
FLY
Fly or flying
FMS
Flight Management System
FSM
Flight Schedule Monitor
FSS
Flight Service Station
GCA
Ground controlled approach
GNSS
Global Navigation Satellite System
GPD
Graphics Plan Display
GPS
Global Positioning System
GS
Ground stop
HF/RO
High Frequency/Radio Operator
HIRL
High intensity runway lights
IAFDOF
Inappropriate Altitude for Direction of Flight
IC
Initial contact
ICAO
International Civil Aviation Organization
IDENT
Aircraft identification
IDS
Information Display System
IFR
Instrument flight rules
IFSS
International Flight Service Station
ILS
Instrument Landing System
INCERFA
Uncertainty Phase code (Alerting Service)
INREQ
Information request
INS
Inertial Navigation System
IR
IFR military training route
IRU
Inertial Reference Unit
ISR
Increased Separation Required
ITWS
Integrated Terminal Weather System
JATO
Jet assisted takeoff
LAHSO
Land and Hold Short Operations
LOA
Letter of Agreement
LLWAS
Low Level Wind Shear Alert System
LLWAS NE
Low Level Wind Shear Alert System Network Expansion
LLWAS-RS
Low Level Wind Shear Alert System Relocation/Sustainment
L/MF
Low/medium frequency
LORAN
Long Range Navigation System
Mach
Mach number
MALS
Medium Intensity Approach Light System
MALSR
Medium Approach Light System with runway alignment indicator lights
MAP
Missed approach point
MARSA
Military authority assumes responsibility for separation of aircraft
MCA
Minimum crossing altitude
MCI
Mode C Intruder
MDA
Minimum descent altitude
MDM
Main display monitor
MEA
Minimum en route (IFR) altitude
MEARTS
Micro En Route Automated Radar Tracking System
METAR
Aviation Routine Weather Report
MIA
Minimum IFR altitude
MIAWS
Medium Intensity Airport Weather System
MIRL
Medium intensity runway lights
MNPS
Minimum Navigation Performance Specification
MNT
Mach Number Technique
MOA
Military operations area
MOCA
Minimum obstruction clearance altitude
MRA
Minimum reception altitude
MSAW
Minimum Safe Altitude Warning
MSL
Mean sea level
MTI
Moving target indicator
MTR
Military training route
MVA
Minimum vectoring altitude
NADIN
National Airspace Data Interchange Network
NAR
National Automation Request
NAS
National Airspace System
NAT
ICAO North Atlantic Region
NAT HLA
North Atlantic High Level Airspace
NBCAP
National Beacon Code Allocation Plan
NDB
Nondirectional radio beacon
NHOP
National Hurricane Operations Plan
NM
Nautical mile
NOAA
National Oceanic and Atmospheric Administration
NOPAC
North Pacific
NORAD
North American Aerospace Defense Command
NOS
National Ocean Service
NOTAM
Notice to Airmen
NOWGT
No weight. The weight class or wake category has not been determined
NRP
North American Route Program
NRR
Nonrestrictive Route
NRS
Navigation Reference System
NTZ
No transgression zone
NWS
National Weather Service
NWSOP
National Winter Season Operations Plan
ODALS
Omnidirectional Approach Lighting System
ODP
Obstacle Departure Procedure
OID
Operator Interface Device
OMIC
Operations Manager‐in‐Charge
OS
Operations Supervisor
OTR
Oceanic transition route
PAPI
Precision Approach Path Indicators
PAR
Precision approach radar
PBCT
Proposed boundary crossing time
P/CG
Pilot/Controller Glossary
PDC
Pre‐Departure Clearance
PID
Pilot initiated downlink
PIREP
Pilot Weather Report
PPI
Plan position indicator
PTP
Point‐to‐point
PVD
Plan view display
RA
Radar Associate
RAIL
Runway alignment indicator lights
RAPCON
Radar Approach Control facility (USAF, USN, and USMC)
RATCF
Radar Air Traffic Control Facility (USN and USMC)
RBS
Radar bomb scoring
RCC
Rescue Coordination Center
RCLS
Runway Centerline System
RCR
Runway condition reading
RE
Recent (used to qualify weather phenomena such as rain, e.g., recent rain = RERA)
REIL
Runway end identifier lights
RF
Radius-to-Fix
RNAV
Area navigation
RNP
Required Navigation Performance
RTQC
Real-Time Quality Control
RVR
Runway visual range
RVSM
Reduced Vertical Separation Minimum
RwyCC
Runway Condition Codes
RwyCR
Runway Condition Report
SAA
Special Activity Airspace
SAR
Search and rescue
SATCOM
Satellite Communication
SDP
Surveillance Data Processing
SELCAL
Selective Calling System
SFA
Single frequency approach
SFO
Simulated flameout
SID
Standard Instrument Departure
SIGMET
Significant meteorological information
SPA
Special Posting Area
SPECI
Nonroutine (Special) Aviation Weather Report
STAR
Standard terminal arrival
STARS
Standard Terminal Automation Replacement System
STMC
Supervisory Traffic Management Coordinator
STMCIC
Supervisory Traffic Management Coordinator‐in‐charge
STOL
Short takeoff and landing
SURPIC
Surface Picture
SVFR
Special Visual Flight Rules
TAA
Terminal arrival area
TAC
Trajectory altering clearance
TAS
Terminal Automation Systems
TACAN
TACAN UHF navigational aid (omnidirectional course and distance information)
TAWS
Terrain Awareness Warning System
TCAS
Traffic Alert and Collision Avoidance System
TCDD
Tower cab digital display
TDLS
Terminal Data Link System
TDW
Tower display workstation
TDWR
Terminal Doppler Weather Radar
TDZL
Touchdown Zone Light System
TF
Track‐to‐Fix
TFMS
Traffic Flow Management System
TMC
Traffic Management Coordinator
TMU
Traffic Management Unit
TO
Technical Operations
TOC
Transfer of communication
TRACON
Terminal Radar Approach Control
TRSA
Terminal radar service area
UAP
Unidentified anomalous phenomena
UHF
Ultra high frequency
USA
United States Army
USAF
United States Air Force
USN
United States Navy
UTC
Coordinated universal time
UTM
Unsuccessful transmission message
UUA
Urgent pilot weather report
VCI
Voice Communication Indicator
VFR
Visual flight rules
VHF
Very high frequency
VMC
Visual meteorological conditions
VNAV
Vertical Navigation
VOR
VHF navigational aid (omnidirectional course information)
VOR/DME
Collocated VOR and DME navigational aids (VHF course and UHF distance information)
VORTAC
Collocated VOR and TACAN navigation aids (VHF and UHF course and UHF distance information)
VR
VFR military training route
VSCS
Voice Switching and Control System
WAAS
Wide Area Augmentation System
WATRS
West Atlantic Route System
WRA
Weather Reconnaissance Area
WSO
Weather Service Office
WSP
Weather System Processor
WST
Convective SIGMET
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Retrieved from ecfr.gov on July 20, 2026.