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FAA Glossary
FAA Glossary of Airport Acronyms
883
Aviation
Professional
10/30/2011
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Term
A/C
 Definition
Aircraft
Term
A/G
 Definition
Air to Ground
Term
A/H
 Definition
Altitude/Height
Term
AAC
 Definition
Mike Monroney Aeronautical Center
Term
AAF
 Definition
Army Air Field
Term
AAI
 Definition
Arrival Aircraft Interval
Term
AAP
 Definition
Advanced Automation Program
Term
AAR
 Definition
Airport Acceptance Rate
Term
ABDIS
 Definition
Automated Data Interchange System Service B
Term
ACAIS
 Definition
Air Carrier Activity Information System
Term
ACAS
 Definition
Aircraft Collision Avoidance System
Term
ACC
 Definition
Airports Consultants Council
Term
ACC
 Definition
Area Control Center
Term
ACCT
 Definition
Accounting Records
Term
ACD
 Definition
Automatic Call Distributor
Term
ACDO
 Definition
Air Carrier District Office
Term
ACF
 Definition
Area Control Facility
Term
ACFO
 Definition
Aircraft Certification Field Office
Term
ACFT
 Definition
Aircraft
Term
ACI-NA
 Definition
Airports Council International - North America
Term
ACID
 Definition
Aircraft Identification
Term
ACIP
 Definition
Airport Capital Improvement Plan
Term
ACLS
 Definition
Automatic Carrier Landing System
Term
ACLT
 Definition
Actual Landing Time Calculated
Term
ACO
 Definition
Office of Airports Compliance and Field Operations
Term
ACO
 Definition
Aircraft Certification Office
Term
ACRP
 Definition
Airport Cooperative Research Program
Term
ADA
 Definition
Air Defense Area
Term
ADAP
 Definition
Airport Development Aid Program
Term
ADAS
 Definition
AWOS Data Acquisition System
Term
ADCCP
 Definition
Advanced Data Communications Control Procedure
Term
ADDA
 Definition
Administrative Data
Term
ADF
 Definition
Automatic Direction Finding
Term
ADI
 Definition
Automatic De-Ice and Inhibitor
Term
ADIN
 Definition
AUTODIN Service
Term
ADIZ
 Definition
Air Defense Identification Zone
Term
ADL
 Definition
Aeronautical Data-Link
Term
ADLY
 Definition
Arrival Delay
Term
ADO
 Definition
Airline Dispatch Office
Term
ADP
 Definition
Automated Data Processing
Term
ADS
 Definition
Automatic Dependent Surveillance
Term
ADSIM
 Definition
Airfield Delay Simulation Model
Term
ADSY
 Definition
Administrative Equipment Systems
Term
ADTN
 Definition
Administrative Data Transmission Network
Term
ADTN2000
 Definition
Administrative Data Transmission Network 2000
Term
ADVO
 Definition
Administrative Voice
Term
AEG
 Definition
Aircraft Evaluation Group
Term
AERA
 Definition
Automated En-Route Air Traffic Control
Term
AEX
 Definition
Automated Execution
Term
AF
 Definition
Airway Facilities
Term
AFB
 Definition
Air Force Base
Term
AFIS
 Definition
Automated Flight Inspection System
Term
AFP
 Definition
Area Flight Plan
Term
AFRES
 Definition
Air Force Reserve Station
Term
AFS
 Definition
Airways Facilities Sector
Term
AFSFO
 Definition
AFS Field Office
Term
AFSFU
 Definition
AFS Field Unit
Term
AFSOU
 Definition
AFS Field Office Unit (Standard is AFSFOU)
Term
AFSS
 Definition
Automated Flight Service Station
Term
AFTN
 Definition
Automated Fixed Telecommunications Network
Term
AGIS
 Definition
Airports Geographic Information System
Term
AGL
 Definition
Above Ground Level
Term
AID
 Definition
Airport Information Desk
Term
AIG
 Definition
Airbus Industries Group
Term
AIM
 Definition
Airman's Information Manual
Term
AIP
 Definition
Airport Improvement Plan
Term
AIRMET
 Definition
Airmen's Meteorological Information
Term
AIRNET
 Definition
Airport Network Simulation Model
Term
AIS
 Definition
Aeronautical Information Service
Term
AIT
 Definition
Automated Information Transfer
Term
ALP
 Definition
Airport Layout Plan
Term
ALS
 Definition
Approach Lighting System
Term
ALSF1
 Definition
ALS with Sequenced Flashers I
Term
ALSF2
 Definition
ALS with Sequenced Flashers II
Term
ALSIP
 Definition
Approach Lighting System Improvement Plan
Term
ALTRV
 Definition
Altitude Reservation
Term
AMASS
 Definition
Airport Movement Area Safety System
Term
AMCC
 Definition
ACF/ARTCC Maintenance Control Center
Term
AMOS
 Definition
Automated Meteorological Observation Station
Term
AMP
 Definition
ARINC Message Processor (OR) Airport Master Plan
Term
AMVER
 Definition
Automated Mutual Assistance Vessel Rescue System
Term
ANC
 Definition
Alternate Network Connectivity
Term
ANCA
 Definition
Airport Noise and Capacity Act
Term
ANG
 Definition
Air National Guard
Term
ANGB
 Definition
Air National Guard Base
Term
ANMS
 Definition
Automated Network Monitoring System
Term
ANSI
 Definition
American National Standards Group
Term
AOA
 Definition
Air Operations Area
Term
AP
 Definition
Acquisition Plan
Term
APP
 Definition
Approach
Term
APS
 Definition
Airport Planning Standard
Term
AQAFO
 Definition
Aeronautical Quality Assurance Field Office
Term
ARAC
 Definition
Army Radar Approach Control (AAF)
Term
ARAC
 Definition
Aviation Rulemaking Advisory Committee
Term
ARCTR
 Definition
FAA Aeronautical Center or Academy
Term
ARF
 Definition
Airport Reservation Function
Term
ARFF
 Definition
Aircraft Rescue and Fire Fighting
Term
ARINC
 Definition
Aeronautical Radio, Inc.
Term
ARLNO
 Definition
Airline Office
Term
ARO
 Definition
Airport Reservation Office
Term
ARP
 Definition
Airport Reference Point
Term
ARRA
 Definition
American Recovery and Reinvestment Act of 2009
Term
ARSA
 Definition
Airport Service Radar Area
Term
ARSR
 Definition
Air Route Surveillance Radar
Term
ARTCC
 Definition
Air Route Traffic Control Center
Term
ARTS
 Definition
Automated Radar Terminal System
Term
ASAS
 Definition
Aviation Safety Analysis System
Term
ASC
 Definition
AUTODIN Switching Center
Term
ASCP
 Definition
Aviation System Capacity Plan
Term
ASD
 Definition
Aircraft Situation Display
Term
ASDA
 Definition
Accelerate Stop Distance Available
Term
ASLAR
 Definition
Aircraft Surge Launch And Recovery
Term
ASM
 Definition
Available Seat Mile
Term
ASP
 Definition
Arrival Sequencing Program
Term
ASOS
 Definition
Automatic Surface Observation System
Term
ASQP
 Definition
Airline Service Quality Performance
Term
ASR
 Definition
Airport Surveillance Radar
Term
ASTA
 Definition
Airport Surface Traffic Automation
Term
ASV
 Definition
Airline Schedule Vendor
Term
AT
 Definition
Air Traffic
Term
ATA
 Definition
Air Transport Association of America
Term
ATAS
 Definition
Airspace and Traffic Advisory Service
Term
ATCAA
 Definition
Air Traffic Control Assigned Airspace
Term
AT&T
 Definition
American Telephone and Telegraph
Term
AT&TASDC
 Definition
AT&T Agency Service Delivery Center
Term
AT&TCSA
 Definition
AT&T Customer Support Associate
Term
ATC
 Definition
Air Traffic Control
Term
ATCBI
 Definition
Air Traffic Control Beacon Indicator
Term
ATCCC
 Definition
Air Traffic Control Command Center
Term
ATCO
 Definition
Air Taxi Commercial Operator
Term
ATCRB
 Definition
Air Traffic Control Radar Beacon
Term
ATCRBS
 Definition
Air Traffic Control Radar Beacon System
Term
ATCSCC
 Definition
Air Traffic Control Systems Command Center
Term
ATCT
 Definition
Airport Traffic Control Tower
Term
ATIS
 Definition
Automated Terminal Information Service
Term
ATISR
 Definition
ATIS Recorder
Term
ATM
 Definition
Air Traffic Management
Term
ATM
 Definition
Asynchronous Transfer Mode
Term
ATMS
 Definition
Advanced Traffic Management System
Term
ATN
 Definition
Aeronautical Telecommunications Network
Term
ATODN
 Definition
AUTODIN Terminal (FUS)
Term
ATOVN
 Definition
AUOTVON (Facility)
Term
ATOMS
 Definition
Air Traffic Operations Management System
Term
ATS
 Definition
Air Traffic Service
Term
ATSCCP
 Definition
ATS Contingency Command Post
Term
ATTIS
 Definition
AT&T Information Systems
Term
AUTODIN
 Definition
DoD Automatic Digital Network
Term
AUTOVON
 Definition
DoD Automatic Voice Network
Term
AVON
 Definition
AUTOVON Service
Term
AVN
 Definition
Aviation Standards National Field Office, Oklahoma City
Term
AWIS
 Definition
Airport Weather Information
Term
AWOS
 Definition
Automated Weather Observation System
Term
AWP
 Definition
Aviation Weather Processor
Term
AWPG
 Definition
Aviation Weather Products Generator
Term
AWS
 Definition
Air Weather Station
Term
BANS
 Definition
BRITE Alphanumeric System
Term
BART
 Definition
Billing Analysis Reporting Tool (GSA software tool)
Term
BASIC
 Definition
Basic Contract Observing Station
Term
BASOP
 Definition
Military Base Operations
Term
BCA
 Definition
Benefit/Cost Analysis
Term
BCR
 Definition
Benefit/Cost Ratio
Term
BDAT
 Definition
Digitized Beacon Data
Term
BMP
 Definition
Best Management Practices
Term
BOC
 Definition
Bell Operating Company
Term
bps
 Definition
bits per second
Term
BRI
 Definition
Basic Rate Interface
Term
BRITE
 Definition
Bright Radar Indicator Terminal Equipment
Term
BRL
 Definition
Building Restriction Line
Term
BUEC
 Definition
Back-- up Emergency Communications
Term
BUECE
 Definition
Back-- up Emergency Communications Equipment
Term
CAA
 Definition
Civil Aviation Authority
Term
CAA
 Definition
Clean Air Act
Term
CAB
 Definition
Civil Aeronautics Board
Term
CARF
 Definition
Central Altitude Reservation Facility
Term
CASFO
 Definition
Civil Aviation Security Office
Term
CAT
 Definition
Category
Term
CAT
 Definition
Clear Air Turbulence
Term
CAU
 Definition
Crypto Ancillary Unit
Term
CBI
 Definition
Computer Based Instruction
Term
CCC
 Definition
Communications Command Center
Term
CCCC
 Definition
Staff Communications
Term
CCCH
 Definition
Central Computer Complex Host
Term
CC&O
 Definition
Customer Cost and Obligation
Term
CCSD
 Definition
Command Communications Service Designator
Term
CCS7-NI
 Definition
Communication Channel Signal-7 - Network Interconnect
Term
CCU
 Definition
Central Control Unit
Term
CD
 Definition
Common Digitizer
Term
CDR
 Definition
Cost Detail Report
Term
CDT
 Definition
Controlled Departure Time
Term
CDTI
 Definition
Cockpit Display of Traffic Information
Term
CENTX
 Definition
Central Telephone Exchange
Term
CEP
 Definition
Capacity Enhancement Program
Term
CEQ
 Definition
Council on Environmental Quality
Term
CERAP
 Definition
Center Radar Approach Control
Term
CERAP
 Definition
Central Radar Approach
Term
CERAP
 Definition
Combined Center/Radar Approach Control
Term
CFC
 Definition
Central Flow Control
Term
CFCF
 Definition
Central Flow Control Facility
Term
CFCS
 Definition
Central Flow Control Service
Term
CFR
 Definition
Code of Federal Regulations
Term
CFWP
 Definition
Central Flow Weather Processor
Term
CFWU
 Definition
Central Flow Weather Unit
Term
CGAS
 Definition
Coast Guard Air Station
Term
CLC
 Definition
Course Line Computer
Term
CLIN
 Definition
Contract Line Item
Term
CLT
 Definition
Calculated Landing Time
Term
CM
 Definition
Commercial Service Airport
Term
CNMPS
 Definition
Canadian Minimum Navigation Performance Specification Airspace
Term
CNS
 Definition
Consolidated NOTAM System
Term
CNSP
 Definition
Consolidated NOTAM System Processor
Term
CO
 Definition
Central Office
Term
COE
 Definition
U.S. Army Corps of Engineers
Term
COMCO
 Definition
Command Communications Outlet
Term
CONUS
 Definition
Continental United States
Term
CORP
 Definition
Private Corporation other than ARINC or MITRE
Term
CPE
 Definition
Customer Premise Equipment
Term
CPMIS
 Definition
Consolidated Personnel Management Information System
Term
CRA
 Definition
Conflict Resolution Advisory
Term
CRDA
 Definition
Converging Runway Display Aid
Term
CRT
 Definition
Cathode Ray Tube
Term
CSA
 Definition
Communications Service Authorization
Term
CSIS
 Definition
Centralized Storm Information System
Term
CSO
 Definition
Customer Service Office
Term
CSR
 Definition
Communications Service Request
Term
CSS
 Definition
Central Site System
Term
C/S/S/N
 Definition
Capacity/Safety/Security/Noise
Term
CTA
 Definition
Controlled Time of Arrival
Term
CTA
 Definition
Control Area
Term
CTA/FIR
 Definition
Control Area/Flight Information Region
Term
CTAF
 Definition
Common Traffic Advisory Frequency
Term
CTAS
 Definition
Center TRACON Automation System
Term
CTMA
 Definition
Center Traffic Management Advisor
Term
CUPS
 Definition
Consolidated Uniform Payroll System
Term
CVFR
 Definition
Controlled Visual Flight Rules
Term
CVTS
 Definition
Compressed Video Transmission Service
Term
CW
 Definition
Continuous Wave
Term
CWSU
 Definition
Central Weather Service Unit
Term
CWY
 Definition
Clearway
Term
DA
 Definition
Direct Access
Term
DA
 Definition
Decision Altitude/Decision Height
Term
DA
 Definition
Descent Advisor
Term
DABBS
 Definition
DITCO Automated Bulletin Board System
Term
DAIR
 Definition
Direct Altitude and Identity Readout
Term
DAR
 Definition
Designated Agency Representative
Term
DARC
 Definition
Direct Access Radar Channel
Term
dBA
 Definition
Decibels A-weighted
Term
DBCRC
 Definition
Defense Base Closure and Realignment Commission
Term
DBE
 Definition
Disadvantaged Business Enterprise
Term
DBMS
 Definition
Data Base Management System
Term
DBRITE
 Definition
Digital Bright Radar Indicator Tower Equipment
Term
DCA
 Definition
Defense Communications Agency
Term
DCAA
 Definition
Dual Call, Automatic Answer Device
Term
DCCU
 Definition
Data Communications Control Unit
Term
DCE
 Definition
Data Communications Equipment
Term
DDA
 Definition
Dedicated Digital Access
Term
DDD
 Definition
Direct Distance Dialing
Term
DDM
 Definition
Difference in Depth of Modulation
Term
DDS
 Definition
Digital Data Service
Term
DEA
 Definition
Drug Enforcement Agency
Term
DEDS
 Definition
Data Entry and Display System
Term
DEIS
 Definition
Draft Environmental Impact Statement
Term
DEP
 Definition
Departure
Term
DEWIZ
 Definition
Distance Early Warning Identification Zone
Term
DF
 Definition
Direction Finder
Term
DFAX
 Definition
Digital Facsimile
Term
DFI
 Definition
Direction Finding Indicator
Term
DGPS
 Definition
Differential Global Positioning Satellite (System)
Term
DH
 Definition
Decision Height
Term
DID
 Definition
Direct Inward Dial
Term
DIP
 Definition
Drop and Insert Point
Term
DIRF
 Definition
Direction Finding
Term
DITCO
 Definition
Defense Information Technology Contracting Office Agency
Term
DME
 Definition
Distance Measuring Equipment
Term
DME/P
 Definition
Precision Distance Measuring Equipment
Term
DMN
 Definition
Data Multiplexing Network
Term
DNL
 Definition
Day-- Night Equivalent Sound Level (Also called Ldn)
Term
DOD
 Definition
Direct Outward Dial
Term
DoD
 Definition
Department of Defense
Term
DOI
 Definition
Department of Interior
Term
DOS
 Definition
Department of State
Term
DOT
 Definition
Department of Transportation
Term
DOTS
 Definition
Dynamic Ocean Tracking System
Term
DOTCC
 Definition
Department of Transportation Computer Center
Term
DSCS
 Definition
Digital Satellite Compression Service
Term
DSUA
 Definition
Dynamic Special Use Airspace
Term
DTS
 Definition
Dedicated Transmission Service
Term
DUAT
 Definition
Direct User Access Terminal
Term
DVFR
 Definition
Defense Visual Flight Rules
Term
DVFR
 Definition
Day Visual Flight Rules
Term
DVOR
 Definition
Doppler Very High Frequency Omni-Directional Range
Term
DYSIM
 Definition
Dynamic Simulator
Term
E-MSAW
 Definition
En-Route Automated Minimum Safe Altitude Warning
Term
EA
 Definition
Environmental Assessment
Term
EARTS
 Definition
En Route Automated Radar Tracking System
Term
ECOM
 Definition
En Route Communications
Term
ECVFP
 Definition
Expanded Charted Visual Flight Procedures
Term
EDCT
 Definition
Expedite Departure Path
Term
EFAS
 Definition
En Route Flight Advisory Service
Term
EFC
 Definition
Expect Further Clearance
Term
EFIS
 Definition
Electronic Flight Information Systems
Term
EIAF
 Definition
Expanded Inward Access Features
Term
EIS
 Definition
Environmental Impact Statement
Term
ELT
 Definition
Emergency Locator Transmitter
Term
ELWRT
 Definition
Electrowriter
Term
EMAS
 Definition
Engineered Materials Arresting System
Term
EMPS
 Definition
En Route Maintenance Processor System
Term
EMS
 Definition
Environmental Management System
Term
ENAV
 Definition
En Route Navigational Aids
Term
EPA
 Definition
Environmental Protection Agency
Term
EPS
 Definition
Engineered Performance Standards
Term
EOF
 Definition
Emergency Operating Facility
Term
EPSS
 Definition
Enhanced Packet Switched Service
Term
ERAD
 Definition
En Route Broadband Radar
Term
ESEC
 Definition
En Route Broadband Secondary Radar
Term
ESP
 Definition
En Route Spacing Program
Term
ESYS
 Definition
En Route Equipment Systems
Term
ESF
 Definition
Extended Superframe Format
Term
ETA
 Definition
Estimated Time of Arrival
Term
ETE
 Definition
Estimated Time En Route
Term
ETG
 Definition
Enhanced Target Generator
Term
ETMS
 Definition
Enhanced Traffic Management System
Term
ETN
 Definition
Electronic Telecommunications Network
Term
EVAS
 Definition
Enhanced Vortex Advisory System
Term
EVCS
 Definition
Emergency Voice Communications System
Term
FAA
 Definition
Federal Aviation Administration
Term
F&E
 Definition
Facility and Equipment
Term
FAAAC
 Definition
FAA Aeronautical Center
Term
FAACIS
 Definition
FAA Communications Information System
Term
FAATC
 Definition
FAA Technical Center
Term
FAC
 Definition
Facility
Term
FAF
 Definition
Final Approach Fix
Term
FAP
 Definition
Final Approach Point
Term
FAPM
 Definition
FTS2000 Associate Program Manager
Term
FAR
 Definition
Federal Aviation Regulation
Term
FAATSAT
 Definition
FAA Telecommunications Satellite
Term
FAST
 Definition
Final Approach Spacing Tool
Term
FAX
 Definition
Facsimile Equipment
Term
FBO
 Definition
Fixed Base Operator
Term
FBS
 Definition
Fall Back Switch
Term
FCC
 Definition
Federal Communications Commission
Term
FCLT
 Definition
Freeze Calculated Landing Time
Term
FCOM
 Definition
FSS Radio Voice Communications
Term
FCPU
 Definition
Facility Central Processing Unit
Term
FDAT
 Definition
Flight Data Entry and Printout (FDEP) and Flight Data Service
Term
FDE
 Definition
Flight Data Entry
Term
FDEP
 Definition
Flight Data Entry and Printout
Term
FDIO
 Definition
Flight Data Input/Output
Term
FDIOC
 Definition
Flight Data Input/Output Center
Term
FDIOR
 Definition
Flight Data Input/Output Remote
Term
FDM
 Definition
Frequency Division Multiplexing
Term
FDP
 Definition
Flight Data Processing
Term
FED
 Definition
Federal
Term
FEIS
 Definition
Final Environmental Impact Statement
Term
FEP
 Definition
Front End Processor
Term
FFAC
 Definition
From Facility
Term
FIFO
 Definition
Flight Inspection Field Office
Term
FIG
 Definition
Flight Inspection Group
Term
FINO
 Definition
Flight Inspection National Field Office
Term
FIPS
 Definition
Federal Information Publication Standard
Term
FIR
 Definition
Flight Information Region
Term
FIRE
 Definition
Fire Station
Term
FIRMR
 Definition
Federal Information Resource Management Regulation
Term
FL
 Definition
Flight Level
Term
FLOWSIM
 Definition
Traffic Flow Planning Simulation
Term
FMA
 Definition
Final Monitor Aid
Term
FMF
 Definition
Facility Master File
Term
FMIS
 Definition
FTS2000 Management Information System
Term
FMS
 Definition
Flight management System
Term
FNMS
 Definition
FTS2000 Network Management System
Term
FOIA
 Definition
Freedom Of Information Act
Term
FONSI
 Definition
Finding of No Significant Impact
Term
FP
 Definition
Flight Plan
Term
FRC
 Definition
Request Full Route Clearance
Term
FSAS
 Definition
Flight Service Automation System
Term
FSDO
 Definition
Flight Standards District Office
Term
FSDPS
 Definition
Flight Service Data Processing System
Term
FSEP
 Definition
Facility/Service/Equipment Profile
Term
FSP
 Definition
Flight Strip Printer
Term
FSPD
 Definition
Freeze Speed Parameter
Term
FSS
 Definition
Flight Service Station
Term
FSSA
 Definition
Flight Service Station Automated Service
Term
FSTS
 Definition
Federal Secure Telephone Service
Term
FSYS
 Definition
Flight Service Station Equipment Systems
Term
FTS
 Definition
Federal Telecommunications System
Term
FTS2000
 Definition
Federal Telecommunications System 2000
Term
FUS
 Definition
Functional Units or Systems
Term
FWCS
 Definition
Flight Watch Control Station
Term
GA
 Definition
General Aviation
Term
GAA
 Definition
General Aviation Activity
Term
GAAA
 Definition
General Aviation Activity and Avionics
Term
GADO
 Definition
General Aviation District Office
Term
GCA
 Definition
Ground Control Approach
Term
GIS
 Definition
Geographic Information System
Term
GNAS
 Definition
General National Airspace System
Term
GNSS
 Definition
Global Navigation Satellite System
Term
GOES
 Definition
Geostationary Operational Environmental Satellite
Term
GOESF
 Definition
GOES Feed Point
Term
GOEST
 Definition
GOES Terminal Equipment
Term
GPRA
 Definition
Government Performance Results Act
Term
GPS
 Definition
Global Positioning Satellite
Term
GPWS
 Definition
Ground Proximity Warning System
Term
GRADE
 Definition
Graphical Airspace Design Environment
Term
GS
 Definition
Glide Slope Indicator
Term
GSA
 Definition
General Services Administration
Term
GSE
 Definition
Ground Support Equipment
Term
H
 Definition
Non-- Directional Radio Homing Beacon (NDB)
Term
HAA
 Definition
Height Above Airport
Term
HAL
 Definition
Height Above Landing
Term
HARS
 Definition
High Altitude Route System
Term
HAT
 Definition
Height Above Touchdown
Term
HAZMAT
 Definition
Hazardous Materials
Term
HCAP
 Definition
High Capacity Carriers
Term
HLDC
 Definition
High Level Data Link Control
Term
HDME
 Definition
NDB with Distance Measuring Equipment
Term
HDQ
 Definition
FAA Headquarters
Term
HELI
 Definition
Heliport
Term
HF
 Definition
High Frequency
Term
HH
 Definition
NDB, 2kw or More
Term
HI-EFAS
 Definition
High Altitude EFAS
Term
HOV
 Definition
High Occupancy Vehicle
Term
HSI
 Definition
Horizontal Situation Indicators
Term
HUD
 Definition
Housing and Urban Development
Term
HWAS
 Definition
Hazardous In-Flight Weather Advisory
Term
Hz
 Definition
HERTZ
Term
IA
 Definition
Indirect Access
Term
IAF
 Definition
Initial Approach Fix
Term
I/AFSS
 Definition
International AFSS
Term
IAP
 Definition
Instrument Approach Procedures
Term
IAPA
 Definition
Instrument Approach Procedures Automation
Term
IBM
 Definition
International Business Machines
Term
IBP
 Definition
International Boundary Point
Term
IBR
 Definition
Intermediate Bit Rate
Term
ICAO
 Definition
International Civil Aviation Organization
Term
ICSS
 Definition
International Communications Switching Systems
Term
IDAT
 Definition
Interfacility Data
Term
IF
 Definition
Intermediate Fix
Term
IFCP
 Definition
Interfacility Communications Processor
Term
IFDS
 Definition
Interfacility Data System
Term
IFEA
 Definition
In-- Flight Emergency Assistance
Term
IFO
 Definition
International Field Office
Term
IFR
 Definition
Instrument Flight Rules
Term
IFSS
 Definition
International Flight Service Station
Term
ILS
 Definition
Instrument Landing System
Term
IM
 Definition
Inner Marker
Term
IMC
 Definition
Instrument Meteorological Conditions
Term
INM
 Definition
Integrated Noise Model
Term
INS
 Definition
Inertial Navigation System
Term
IRMP
 Definition
Information Resources Management Plan
Term
ISDN
 Definition
Integrated Services Digital Network
Term
ISMLS
 Definition
Interim Standard Microwave Landing System
Term
ITI
 Definition
Interactive Terminal Interface
Term
IVRS
 Definition
Interim Voice Response System
Term
IW
 Definition
Inside Wiring
Term
Kbps
 Definition
Kilobits Per Second
Term
Khz
 Definition
Kilohertz
Term
KVDT
 Definition
Keyboard Video Display Terminal
Term
LAA
 Definition
Local Airport Advisory
Term
LAAS
 Definition
Low Altitude Alert System
Term
LABS
 Definition
Leased A B Service
Term
LABSC
 Definition
LABS GS-- 200 Computer
Term
LABSR
 Definition
LABS Remote Equipment
Term
LABSW
 Definition
LABS Switch System
Term
LAHSO
 Definition
Land and Hold Short Operation
Term
LAN
 Definition
Local Area Network
Term
LATA
 Definition
Local Access and Transport Area
Term
LAWRS
 Definition
Limited Aviation Weather Reporting System
Term
LCF
 Definition
Local Control Facility
Term
LCN
 Definition
Local Communications Network
Term
LDA
 Definition
Localizer Directional Aid
Term
LDA
 Definition
Landing Directional Aid
Term
LDIN
 Definition
Lead-- in Lights
Term
LEC
 Definition
Local Exchange Carrier
Term
LF
 Definition
Low Frequency
Term
LINCS
 Definition
Leased Interfacility NAS Communications System
Term
LIS
 Definition
Logistics and Inventory System
Term
LLWAS
 Definition
Low Level Wind Shear Alert System
Term
LM/MS
 Definition
Low/Medium Frequency
Term
LMM
 Definition
Locator Middle Marker
Term
LMS
 Definition
LORAN Monitor Site
Term
LOC
 Definition
Localizer
Term
LOCID
 Definition
Location Identifier
Term
LOI
 Definition
Letter of Intent
Term
LOM
 Definition
Compass Locator at Outer Marker
Term
LORAN
 Definition
Long Range Aid to Navigation
Term
LPV
 Definition
Lateral Precision Performance with Vertical Guidance
Term
LRCO
 Definition
Limited Remote Communications Outlet
Term
LRNAV
 Definition
Long Range Navigation
Term
LRR
 Definition
Long Range Radar
Term
MAA
 Definition
Maximum Authorized Altitude
Term
MALS
 Definition
Medium Intensity Approach Lighting System
Term
MALSF
 Definition
MALS with Sequenced Flashers
Term
MALSR
 Definition
MALS with Runway Alignment Indicator Lights
Term
MAP
 Definition
Maintenance Automation Program
Term
MAP
 Definition
Military Airport Program
Term
MAP
 Definition
Missed Approach Point
Term
MAP
 Definition
Modified Access Pricing
Term
Mbps
 Definition
Megabits Per Second
Term
MCA
 Definition
Minimum Crossing Altitude
Term
MCAS
 Definition
Marine Corps Air Station
Term
MCC
 Definition
Maintenance Control Center
Term
MCL
 Definition
Middle Compass Locater
Term
MCS
 Definition
Maintenance and Control System
Term
MDA
 Definition
Minimum Descent Altitude
Term
MDT
 Definition
Maintenance Data Terminal
Term
MEA
 Definition
Minimum En Route Altitude
Term
METI
 Definition
Meteorological Information
Term
MF
 Definition
Middle Frequency
Term
MFJ
 Definition
Modified Final Judgment
Term
MFT
 Definition
Meter Fix Crossing Time/Slot Time
Term
MHA
 Definition
Minimum Holding Altitude
Term
Mhg
 Definition
MegHERTZ
Term
MIA
 Definition
Minimum IFR Altitudes
Term
MIDO
 Definition
Manufacturing Inspection District Office
Term
MIS
 Definition
Meteorological Impact Statement
Term
MISC
 Definition
Miscellaneous
Term
MISO
 Definition
Manufacturing Inspection Satellite Office
Term
MIT
 Definition
Miles In Trail
Term
MITRE
 Definition
Mitre Corporation
Term
MLS
 Definition
Microwave Landing System
Term
MM
 Definition
Middle Marker
Term
MMC
 Definition
Maintenance Monitoring Console
Term
MMS
 Definition
Maintenance Monitoring System
Term
MNPS
 Definition
Minimum Navigation Performance Specification
Term
MNPSA
 Definition
Minimum Navigation Performance Specifications Airspace
Term
MOA
 Definition
Memorandum of Agreement
Term
MOA
 Definition
Military Operations Area
Term
MOCA
 Definition
Minimum Obstruction Clearance Altitude
Term
MODE C
 Definition
Altitude-Encoded Beacon Reply
Term
MODE C
 Definition
Altitude Reporting Mode of Secondary Radar
Term
MODE S
 Definition
Mode Select Beacon System
Term
MOU
 Definition
Memorandum of Understanding
Term
MPO
 Definition
Metropolitan Planning Organization
Term
MPS
 Definition
Maintenance Processor Subsystem (OR) Master Plan Supplement
Term
MRA
 Definition
Minimum Reception Altitude
Term
MRC
 Definition
Monthly Recurring Charge
Term
MSA
 Definition
Minimum Safe Altitude
Term
MSAW
 Definition
Minimum Safe Altitude Warning
Term
MSL
 Definition
Mean Sea Level
Term
MSN
 Definition
Message Switching Network
Term
MTCS
 Definition
Modular Terminal Communications System
Term
MTI
 Definition
Moving Target Indicator
Term
MUX
 Definition
Multiplexor
Term
MVA
 Definition
Minimum Vectoring Altitude
Term
MVFR
 Definition
Marginal Visual Flight Rules
Term
NAAQS
 Definition
National Ambient Air Quality Standards
Term
NADA
 Definition
NADIN Concentrator
Term
NADIN
 Definition
National Airspace Data Interchange Network
Term
NADSW
 Definition
NADIN Switches
Term
NAILS
 Definition
National Airspace Integrated Logistics Support
Term
NAMS
 Definition
NADIN IA
Term
NAPRS
 Definition
National Airspace Performance Reporting System
Term
NAS
 Definition
National Airspace System or Naval Air Station
Term
NASDC
 Definition
National Aviation Safety Data
Term
NASP
 Definition
National Airspace System Plan
Term
NASPAC
 Definition
National Airspace System Performance Analysis Capability
Term
NATCO
 Definition
National Communications Switching Center
Term
NAVAID
 Definition
Navigation Aid
Term
NAVMN
 Definition
Navigation Monitor and Control
Term
NAWAU
 Definition
National Aviation Weather Advisory Unit
Term
NAWPF
 Definition
National Aviation Weather Processing Facility
Term
NCAR
 Definition
National Center for Atmospheric Research; Boulder, CO
Term
NCF
 Definition
National Control Facility
Term
NCIU
 Definition
NEXRAD Communications Interface Unit
Term
NCP
 Definition
Noise Compatibility Program
Term
NCS
 Definition
National Communications System
Term
NDB
 Definition
Non-- Directional Radio Homing Beacon
Term
NDNB
 Definition
NADIN II
Term
NEM
 Definition
Noise Exposure Map
Term
NEPA
 Definition
National Environmental Policy Act
Term
NEXRAD
 Definition
Next Generation Weather Radar
Term
NFAX
 Definition
National Facsimile Service
Term
NFDC
 Definition
National Flight Data Center
Term
NFIS
 Definition
NAS Facilities Information System
Term
NI
 Definition
Network Interface
Term
NICS
 Definition
National Interfacility Communications System
Term
NPE
 Definition
Non-primary Airport Entitlement
Term
NPIAS
 Definition
National Plan of Integrated Airport Systems
Term
NM
 Definition
Nautical Mile
Term
NMAC
 Definition
Near Mid Air Collision
Term
NMC
 Definition
National Meteorological Center
Term
NMCE
 Definition
Network Monitoring and Control Equipment
Term
NMCS
 Definition
Network Monitoring and Control System
Term
NOAA
 Definition
National Oceanic and Atmospheric Administration
Term
NOC
 Definition
Notice Of Completion
Term
NOTAM
 Definition
Notice to Airmen
Term
NPDES
 Definition
National Pollutant Discharge Elimination System
Term
NPIAS
 Definition
National Plan of Integrated Airport Systems
Term
NRC
 Definition
Non-- Recurring Charge
Term
NRCS
 Definition
National Radio Communications Systems
Term
NSAP
 Definition
National Service Assurance Plan
Term
NSRCATN
 Definition
National Strategy to Reduce Congestion on America's Transportation Network
Term
NSSFC
 Definition
National Severe Storms Forecast Center
Term
NSSL
 Definition
National Severe Storms Laboratory; Norman, OK
Term
NTAP
 Definition
Notices To Airmen Publication
Term
NTP
 Definition
National Transportation Policy
Term
NTSB
 Definition
National Transportation Safety Board
Term
NTZ
 Definition
No Transgression Zone
Term
NWS
 Definition
National Weather Service
Term
NWSR
 Definition
NWS Weather Excluding NXRD
Term
NSWRH
 Definition
NWS Regional Headquarters
Term
NXRD
 Definition
Advanced Weather Radar System
Term
OAG
 Definition
Official Airline Guide
Term
OALT
 Definition
Operational Acceptable Level of Traffic
Term
OAW
 Definition
Off-airway Weather Station
Term
ODAL
 Definition
Omnidirectional Approach Lighting System
Term
ODAPS
 Definition
Oceanic Display and Processing Station
Term
OEP
 Definition
Operational Evolution Plan / Partnership
Term
OFA
 Definition
Object Free Area
Term
OFDPS
 Definition
Offshore Flight Data Processing System
Term
OFT
 Definition
Outer Fix Time
Term
OFZ
 Definition
Obstacle Free Zone
Term
OM
 Definition
Outer Marker
Term
OMB
 Definition
Office of Management and Budget
Term
ONER
 Definition
Oceanic Navigational Error Report
Term
OPLT
 Definition
Operational Acceptable Level of Traffic
Term
OPSW
 Definition
Operational Switch
Term
OPX
 Definition
Off Premises Exchange
Term
ORD
 Definition
Operational Readiness Demonstration
Term
OTR
 Definition
Oceanic Transition Route
Term
OTS
 Definition
Organized Track System
Term
PABX
 Definition
Private Automated Branch Exchange
Term
PAD
 Definition
Packet Assembler/Disassembler
Term
PAM
 Definition
Peripheral Adapter Module
Term
PAPI
 Definition
Precision Approach Path Indicator
Term
PAR
 Definition
Precision Approach Radar
Term
PAR
 Definition
Preferential Arrival Route
Term
PATWAS
 Definition
Pilots Automatic Telephone Weather Answering Service
Term
PBCT
 Definition
Proposed Boundary Crossing Time
Term
PBRF
 Definition
Pilot Briefing
Term
PBX
 Definition
Private Branch Exchange
Term
PCA
 Definition
Positive Control Airspace
Term
PCM
 Definition
Pulse Code Modulation
Term
PDAR
 Definition
Preferential Arrival And Departure Route
Term
PDC
 Definition
Pre-- Departure Clearance
Term
PDC
 Definition
Program Designator Code
Term
PDR
 Definition
Preferential Departure Route
Term
PDN
 Definition
Public Data Network
Term
PFC
 Definition
Passenger Facility Charge
Term
PGP
 Definition
Planning Grant Program
Term
PIC
 Definition
Principal Interexchange Carrier
Term
PIDP
 Definition
Programmable Indicator Data Processor
Term
PIREP
 Definition
Pilot Weather Report
Term
PMS
 Definition
Program Management System
Term
POLIC
 Definition
Police Station
Term
POP
 Definition
Point Of Presence
Term
POT
 Definition
Point Of Termination
Term
PPIMS
 Definition
Personal Property Information Management System
Term
PR
 Definition
Primary Commercial Service Airport
Term
PRI
 Definition
Primary Rate Interface
Term
PRM
 Definition
Precision Runway Monitor
Term
PSDN
 Definition
Public Switched Data Network
Term
PSN
 Definition
Packet Switched Network
Term
PSS
 Definition
Packet Switched Service
Term
PSTN
 Definition
Public Switched Telephone Network
Term
PTC
 Definition
Presumed-to-Conform
Term
PUB
 Definition
Publication
Term
PUP
 Definition
Principal User Processor
Term
PVC
 Definition
Permanent Virtual Circuit
Term
PVD
 Definition
Plan View Display
Term
RAIL
 Definition
Runway Alignment Indicator Lights
Term
RAPCO
 Definition
Radar Approach Control (USAF)
Term
RAPCON
 Definition
Radar Approach Control (FAA)
Term
RATCC
 Definition
Radar Air Traffic Control Center
Term
RATCF
 Definition
Radar Air Traffic Control Facility (USN)
Term
RBC
 Definition
Rotating Beam Ceilometer
Term
RBDPE
 Definition
Radar Beacon Data Processing Equipment
Term
RBSS
 Definition
Radar Bomb Scoring Squadron
Term
RCAG
 Definition
Remote Communications Air/Ground
Term
RCC
 Definition
Rescue Coordination Center
Term
RCF
 Definition
Remote Communication Facility
Term
RCCC
 Definition
Regional Communications Control Centers
Term
RCIU
 Definition
Remote Control Interface Unit
Term
RCL
 Definition
Radio Communications Link
Term
RCLR
 Definition
RCL Repeater
Term
RCLT
 Definition
RCL Terminal
Term
RCO
 Definition
Remote Communications Outlet
Term
RCU
 Definition
Remote Control Unit
Term
RDAT
 Definition
Digitized Radar Data
Term
RDP
 Definition
Radar Data Processing
Term
RDSIM
 Definition
Runway Delay Simulation Model
Term
REIL
 Definition
Runway End Identification Lights
Term
RF
 Definition
Radio Frequency
Term
RL
 Definition
General Aviation Reliever Airport
Term
RMCC
 Definition
Remote Monitor Control Center
Term
RMCF
 Definition
Remote Monitor Control Facility
Term
RML
 Definition
Radio Microwave Link
Term
RMLR
 Definition
RML Repeater
Term
RMLT
 Definition
RML Terminal
Term
RMM
 Definition
Remote Maintenance Monitoring
Term
RMMS
 Definition
Remote Maintenance Monitoring System
Term
RMS
 Definition
Remote Monitoring Subsystem
Term
RMSC
 Definition
Remote Monitoring Subsystem Concentrator
Term
RNAV
 Definition
Area Navigation
Term
RNP
 Definition
Required Navigation Performance
Term
ROD
 Definition
Record of Decision
Term
ROSA
 Definition
Report of Service Activity
Term
ROT
 Definition
Runway Occupancy Time
Term
RP
 Definition
Restoration Priority
Term
RPC
 Definition
Restoration Priority Code
Term
RPG
 Definition
Radar Processing Group
Term
RPZ
 Definition
Runway Protection Zone
Term
RRH
 Definition
Remote Reading Hygrothermometer
Term
RRHS
 Definition
Remote Reading Hydrometer
Term
RRWDS
 Definition
Remote Radar Weather Display
Term
RRWSS
 Definition
RWDS Sensor Site
Term
RSA
 Definition
Runway Safety Area
Term
RSAT
 Definition
Runway Safety Action Team
Term
RSS
 Definition
Remote Speaking System
Term
RT
 Definition
Remote Transmitter
Term
RT&BTL
 Definition
Radar Tracking And Beacon Tracking Level
Term
RTAD
 Definition
Remote Tower Alphanumerics Display
Term
RTCA
 Definition
Radio Technical Commission for Aeronautics
Term
RTP
 Definition
Regional Transportation Plan
Term
RTR
 Definition
Remote Transmitter/Receiver
Term
RTRD
 Definition
Remote Tower Radar Display
Term
RVR
 Definition
Runway Visual Range
Term
RW
 Definition
Runway
Term
RWDS
 Definition
Same as RRWDS
Term
RWP
 Definition
Real-time Weather Processor
Term
S/S
 Definition
Sector Suite
Term
SAC
 Definition
Strategic Air Command
Term
SAFI
 Definition
Semi Automatic Flight Inspection
Term
SALS
 Definition
Short Approach Lighting System
Term
SATCOM
 Definition
Satellite Communications
Term
SAWRS
 Definition
Supplementary Aviation Weather Reporting System
Term
SBGP
 Definition
State Block Grant Program
Term
SCC
 Definition
System Command Center
Term
SCVTS
 Definition
Switched Compressed Video Telecommunications Service
Term
SDF
 Definition
Simplified Direction Finding
Term
SDF
 Definition
Software Defined Network
Term
SDIS
 Definition
Switched Digital Integrated Service
Term
SDP
 Definition
Service Delivery Point
Term
SDS
 Definition
Switched Data Service
Term
SEL
 Definition
Single Event Level
Term
SELF
 Definition
Simplified Short Approach Lighting System With Sequenced Flashing Lights
Term
SFAR-38
 Definition
Special Federal Aviation Regulation 38
Term
SHPO
 Definition
State Historic Preservation Officer
Term
SIC
 Definition
Service Initiation Charge
Term
SID
 Definition
Station Identifier
Term
SID
 Definition
Standard Instrument Departure
Term
SIGMET
 Definition
Significant Meteorological Information
Term
SIMMOD
 Definition
Airport and Airspace Simulation Model
Term
SIP
 Definition
State Implementation Plan
Term
SM
 Definition
Statute Miles
Term
SMGC
 Definition
Surface Movement Guidance and Control
Term
SMPS
 Definition
Sector Maintenance Processor Subsystem
Term
SMS
 Definition
Safety Management System
Term
SMS
 Definition
Simulation Modeling System
Term
SNR
 Definition
Signal-to-Noise Ratio, also: S/N
Term
SOC
 Definition
Service Oversight Center
Term
SOAR
 Definition
System of Airports Reporting
Term
SOIR
 Definition
Simultaneous Operations On Intersecting Runways
Term
SOIWR
 Definition
Simultaneous Operations on Intersecting Wet Runways
Term
SRAP
 Definition
Sensor Receiver and Processor
Term
SSALF
 Definition
SSALS with Sequenced Flashers
Term
SSALR
 Definition
Simplified Short Approach Lighting System
Term
SSB
 Definition
Single Side Band
Term
STAR
 Definition
Standard Terminal Arrival Route
Term
STD
 Definition
Standard
Term
STMUX
 Definition
Statistical Data Multiplexer
Term
STOL
 Definition
Short Takeoff and Landing
Term
SURPIC
 Definition
Surface Picture
Term
SVCA
 Definition
Service A
Term
SVCB
 Definition
Service B
Term
SVCC
 Definition
Service C
Term
SVCO
 Definition
Service O
Term
SVFO
 Definition
Interphone Service F (A)
Term
SVFB
 Definition
Interphone Service F (B)
Term
SVFC
 Definition
Interphone Service F (C)
Term
SVFD
 Definition
Interphone Service F (D)
Term
SVFR
 Definition
Special Visual Flight Rules
Term
T1MUX
 Definition
T1 Multiplexer
Term
TAAS
 Definition
Terminal Advance Automation System
Term
TACAN
 Definition
Tactical Aircraft Control and Navigation
Term
TACR
 Definition
TACAN at VOR, TACAN only
Term
TAF
 Definition
Terminal Area Forecast
Term
TARS
 Definition
Terminal Automated Radar Service
Term
TAS
 Definition
True Air Speed
Term
TATCA
 Definition
Terminal Air Traffic Control Automation
Term
TAVT
 Definition
Terminal Airspace Visualization Tool
Term
TCA
 Definition
Traffic Control Airport or Tower Control Airport
Term
TCA
 Definition
Terminal Control Area
Term
TCACCIS
 Definition
Transportation Coordinator Automated Command and Control Information System
Term
TCAS
 Definition
Traffic Alert And Collision Avoidance System
Term
TCC
 Definition
DOT Transportation Computer Center
Term
TCCC
 Definition
Tower Control Computer Complex
Term
TCE
 Definition
Tone Control Equipment
Term
TCLT
 Definition
Tentative Calculated Landing Time
Term
TCO
 Definition
Telecommunications Certification Officer
Term
TCOM
 Definition
Terminal Communications
Term
TCS
 Definition
Tower Communications System
Term
TDLS
 Definition
Tower Data-Link Services
Term
TDMUX
 Definition
Time Division Data Multiplexer
Term
TDWR
 Definition
Terminal Doppler Weather Radar
Term
TELCO
 Definition
Telephone Company
Term
TELMS
 Definition
Telecommunications Management System
Term
TERPS
 Definition
Terminal Instrument Procedures
Term
TFAC
 Definition
To Facility
Term
TH
 Definition
Threshold
Term
TIMS
 Definition
Telecommunications Information Management System
Term
TIPS
 Definition
Terminal Information Processing System
Term
TL
 Definition
Taxilane
Term
TMA
 Definition
Traffic Management Advisor
Term
TMC
 Definition
Traffic Management Coordinator
Term
TMC/MC
 Definition
Traffic Management Coordinator/Military Coordinator
Term
TMCC
 Definition
Terminal Information Processing System
Term
TMCC
 Definition
Traffic Management Computer Complex
Term
TMF
 Definition
Traffic Management Facility
Term
TML
 Definition
Television Microwave Link
Term
TMLI
 Definition
Television Microwave Link Indicator
Term
TMLR
 Definition
Television Microwave Link Repeater
Term
TMLT
 Definition
Television Microwave Link Terminal
Term
TM&O
 Definition
Telecommunications Management and Operations
Term
TMP
 Definition
Traffic Management Processor
Term
TMS
 Definition
Traffic Management System
Term
TMSPS
 Definition
Traffic Management Specialists
Term
TMU
 Definition
Traffic Management Unit
Term
TODA
 Definition
Takeoff Distance Available
Term
TOF
 Definition
Time Of Flight
Term
TOFMS
 Definition
Time of Flight Mass Spectrometer
Term
TOPS
 Definition
Telecommunications Ordering and Pricing System (GSA software tool)
Term
TORA
 Definition
Take-off Run Available
Term
TNAV
 Definition
Terminal Navigational Aids
Term
TR
 Definition
Telecommunications Request
Term
TRACAB
 Definition
Terminal Radar Approach Control in Tower Cab
Term
TRACON
 Definition
Terminal Radar Approach Control Facility
Term
TRAD
 Definition
Terminal Radar Service
Term
TRB
 Definition
Transportation Research Board
Term
TRNG
 Definition
Training
Term
TSA
 Definition
Taxiway Safety Area
Term
TSEC
 Definition
Terminal Secondary Radar Service
Term
TSP
 Definition
Telecommunications Service Priority
Term
TSR
 Definition
Telecommunications Service Request
Term
TSYS
 Definition
Terminal Equipment Systems
Term
TTMA
 Definition
TRACON Traffic Management Advisor
Term
TTY
 Definition
Teletype
Term
TVOR
 Definition
Terminal VHF Omnidirectional Range
Term
TW
 Definition
Taxiway
Term
TWEB
 Definition
Transcribed Weather Broadcast
Term
TWR
 Definition
Tower (non-controlled)
Term
TY
 Definition
Type (FAACIS)
Term
UAS
 Definition
Uniform Accounting System
Term
UHF
 Definition
Ultra High Frequency
Term
URA
 Definition
Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970
Term
USAF
 Definition
United States Air Force
Term
USC
 Definition
United States Code
Term
USOC
 Definition
Uniform Service Order Code
Term
VALE
 Definition
Voluntary Airport Low Emission
Term
VASI
 Definition
Visual Approach Slope Indicator
Term
VDME
 Definition
VOR with Distance Measuring Equipment
Term
VF
 Definition
Voice Frequency
Term
VFR
 Definition
Visual Flight Rules
Term
VHF
 Definition
Very High Frequency
Term
VLF
 Definition
Very Low Frequency
Term
VMC
 Definition
Visual Meteorological Conditions
Term
VNAV
 Definition
Visual Navigational Aids
Term
VNTSC
 Definition
Volpe National Transportation System Center
Term
VON
 Definition
Virtual On-net
Term
VOR
 Definition
VHF Omnidirectional Range
Term
VOR/DME
 Definition
VHF Omnidirectional Range/Distance Measuring Equipment
Term
VORTAC
 Definition
VOR collocated with TACAN
Term
VOT
 Definition
VOR Test Facility
Term
VP/D
 Definition
Vehicle/Pedestrian Deviation
Term
VRS
 Definition
Voice Recording System
Term
VSCS
 Definition
Voice Switching and Control System
Term
VTA
 Definition
Vertex Time of Arrival
Term
VTAC
 Definition
VOR collocated with TACAN
Term
VTOL
 Definition
Vertical Takeoff and Landing
Term
VTS
 Definition
Voice Telecommunications System
Term
WAAS
 Definition
Wide Area Augmentation System
Term
WAN
 Definition
Wide Area Network
Term
WC
 Definition
Work Center
Term
WCP
 Definition
Weather Communications Processor
Term
WECO
 Definition
Western Electric Company
Term
WESCOM
 Definition
Western Electric Satellite Communications
Term
WMSC
 Definition
Weather Message Switching Center
Term
WMSCR
 Definition
Weather Message Switching Center Replacement
Term
WSCMO
 Definition
Weather Service Contract Meteorological Observatory
Term
WSFO
 Definition
Weather Service Forecast Office
Term
WSMO
 Definition
Weather Service Meteorological Observatory
Term
WSO
 Definition
Weather Service Office
Term
WTHR
 Definition
Weather
Term
WX
 Definition
Weather
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