A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

  • A&E :Architecture and Engineering
  • A/C :Aircraft
  • A/G :Air to Ground
  • A/H :Altitude/Height
  • AAA :Airport Airspace Analysis
  • AAC :Mike Monroney Aeronautical Center
  • AADC :Airport Average Daily Capacity
  • AAF :Airway Facilities Service
  • AAF :Army Air Field
  • AAF-1 :Director of Airway Facilities
  • AAI :Arrival Aircraft Interval
  • AAI :FAA Office of Accident Investigation
  • AAL :Alaska Region
  • AAM :Office of Aerospace Medicine
  • AAMS :Aircraft Arrival Management System
  • AAP :Advanced Automation Program
  • AAR :After Action Review
  • AAR :Airport Acceptance Rate
  • AAR :Airport and Aircraft Safety Research and Development
  • AAS :Advanced Automation System
  • AASR :Aging Aircraft Safety Rule
  • AAT :Associate Administrator for Air Traffic
  • ABA :FAA Office of Financial Services
  • ABA :Office of Budget
  • ABDIS :Automated Data Interchange System Service
  • AC :Advisory Circular
  • ACAA :Air Carrier Association of America
  • ACAIS :Air Carrier Activity Information System
  • ACAS :Aircraft Collision Avoidance System
  • ACC :Airports Consultants Council
  • ACC :Area Control Center
  • ACCT :Accounting Records
  • ACD :Automatic Call Distributor
  • ACDO :Air Carrier District Office
  • ACE :Central Region
  • ACEP :Airport Capacity Enhancement Plan
  • ACF :Area Control Facility
  • ACFO :Aircraft Certification Field Office
  • ACFT :Aircraft
  • ACI-NA :Airports Council International-North America
  • ACID :Aircraft Identification
  • ACIP :Airport Capital Improvement Plan
  • ACIP :Automated Conformity Inspection Process
  • ACLS :Automatic Carrier Landing System
  • ACLT :Actual Landing Time Calculated
  • ACO :Aircraft Certification Office
  • ACO :Associate Contracting Officer
  • ACO :Office of Airports Compliance and Field Operations
  • ACR :FAA Office of Civil Rights
  • ACRP :Airport Cooperative Research Program
  • ACSEP :Aircraft Certification Systems Evaluation Program
  • ACT :William J. Hughes Technical Center
  • AD :Airworthiness Directive
  • ADA :Air Defense Area
  • ADAP :Airport Development Aid Program
  • ADAS :Automated Weather Observing System Data Acquisition System
  • ADAS :AWOS Data Acquisition System
  • ADC :Air Defense Command
  • ADCCP :Advanced Data Communications Control Procedure
  • ADDA :Administrative Data
  • ADDS :Aviation Digital Data Service
  • ADF :Automatic Direction Finding
  • ADI :Automatic De-Ice and Inhibitor
  • ADIC :ATS Interfacility Data Communications
  • ADIN :AUTODIN Service
  • ADIZ :Air Defense Identification Zone
  • ADL :Aeronautical Data Link
  • ADLO :Air Defense Liaison Office
  • ADLY :Arrival Delay
  • ADM :Aeronautical Decision Making
  • ADO :Airline Dispatch Office
  • ADO :Airport District Office
  • ADP :Automated Data Processing
  • ADS :Automated Distribution System
  • ADS :Automatic Dependent Surveillance
  • ADS-B :Automatic Dependent Surveillance-Broadcast
  • ADSIM :Airfield Delay Simulation Model
  • ADSY :Administrative Equipment Systems
  • ADTN :Administrative Data Transmission Network
  • ADTN2000 :Administrative Data Transmission Network 2000
  • ADVO :Administrative Voice
  • AEA :Eastern Region
  • AED :Automated External Defibrillator
  • AEDT :Aviation Environmental Design Tool
  • AEE :FAA Office of Environment and Energy
  • AEEC :Airlines Electronic Engineering Committee
  • AEG :Aircraft Evaluation Group
  • AEP :FAA Office of Aviation Policy Planning and Environment
  • AERA :Automated En-Route Air Traffic Control
  • AEX :Automated Execution
  • AF :Air Force
  • AF :Airway Facilities
  • AFB :Air Force Base
  • AFDSS :Air Fix Data Sub Set
  • AFER :Aircraft Fuel Expense Reconciliation System
  • AFIS :Automated Flight Inspection System
  • AFMS :Automatic Flight Management System
  • AFMT :Airway Facilities Management Team
  • AFO :Airport Field Office
  • AFP :Airspace Flow Program
  • AFP :Area Flight Plan
  • AFRES :Air Force Reserve Station
  • AFS :Airways Facilities Sector
  • AFS :Flight Standards Service
  • AFSFO :AFS Field Office
  • AFSFU :AFS Field Unit
  • AFSOU :AFS Field Office Unit (Standard is AFSFOU)
  • AFSS :Automated Flight Service Station
  • AFTIL :Airway Facilities Tower Integration Laboratory
  • AFTN :Automated Fixed Telecommunications Network
  • AFZ :Resource Management
  • AGC :FAA Office of the Chief Counsel
  • AGHME :Aircraft Geometric Height Measurement Element
  • AGI :FAA Office of Government and Industry Affairs
  • AGL :Above Ground Level
  • AGL :Alliance Great Lakes Region
  • AHR :FAA Office of Human Resources
  • AICS :Aircraft Inventory and Charter System
  • AID :Airport Information Desk
  • AIFSS :Automated International Flight Service
  • AIG :Airbus Industries Group
  • AILS :Automatic Instrument Landing System
  • AIM :Aeronautical Information Manual
  • AIM :Airman's Information Manual
  • AIP :Aeronautical Information Publication
  • AIP :Airport Improvement Plan
  • AIP :Airport Improvement Program
  • AIPA :Aeronautical Information Production Application
  • AIR :Aircraft Certification Service
  • AIRMET :Airmen's Meteorological Information
  • AIRNAV :Airports and Navigation Aids Database System
  • AIRNET :Airport Network Simulation Model
  • AIRPAC :Advisor for the Intelligent Resolution of Predicted Aircraft
  • AIS :Aeronautical Information Service
  • AIS :Aeronautical Information System
  • AIS :FAA Office of Information Systems Security
  • AIS :Aeronautical Information System
  • AIT :Automated Information Transfer
  • AITS :Automated Inventory Tracking System
  • AJA :Acquisition & Business Services, Air Traffic Organization
  • AJC :Communications Services, Air Traffic Organization
  • AJE :En Route & Oceanic Service, Air Traffic Organization
  • AJF :Finance Services, Air Traffic Organization
  • AJO :Chief Operating Officer, Air Traffic Organization
  • AJP :Operations Planning Services, Air Traffic Organization
  • AJR :System Operations Services, Air Traffic Organization
  • AJS :Safety Services, Air Traffic Organization
  • AJT :Terminal Service, Air Traffic Organization
  • AJW :Technical Operation Services, Air Traffic Organization
  • ALO :Aviation Logistics Organization
  • ALP :Airport Layout Plan
  • ALPA :Airlines Pilots Association
  • ALS :Approach Lighting System
  • ALSF :Approach Lighting System With Sequenced Flashing Lights
  • ALSF1 :ALS with Sequenced Flashers I
  • ALSF2 :ALS with Sequenced Flashers II
  • ALSIP :Approach Lighting System Improvement Plan
  • ALTRV :Altitude Reservation
  • AMASS :Airport Movement Area Safety System
  • AMC :Mike Monroney Aeronautical Center
  • AMCC :ACF/ARTCC Maintenance Control Center
  • AMCC :Air Route Traffic Control Center Maintenance Control Center
  • AMIC :Area Manager in Charge
  • AMIS :Aircraft Management Information System
  • AMOC :Alternative Methods of Compliance
  • AMOS :Automated Meteorological Observation Station
  • AMP :ARINC Message Processor (OR) Airport Master Plan
  • AMS :Acquisition Management System
  • AMT :Aviation Maintenance Technician
  • AMVER :Automated Mutual Assistance Vessel Rescue System
  • ANC :Alternate Network Connectivity
  • ANCA :Airport Noise and Capacity Act
  • AND :Associate Administrator for NAS Development
  • ANE :New England Region
  • ANG :Air National Guard
  • ANGB :Air National Guard Base
  • ANM :Northwest Mountain Region
  • ANMS :Automated Network Monitoring System
  • ANS :NAS Transition and Integration Directorate
  • ANS :NAS Transitions and Implementation
  • ANSI :American National Standards Institute
  • AO :Authorizing Official
  • AOA :Air Operations Area
  • AOA :FAA Office of the Administrator
  • AOAS :Advanced Oceanic Automation System
  • AOC :Airline Operational Control Center
  • AOC :FAA Office of Communications
  • AOCC :Atlantic Operations Control Center
  • AODR :Authorizing Official Designated Representative
  • AOP :NAS Operations
  • AOPA :Aircraft Owners and Pilots Association
  • AOS :Operational Support Service
  • AOV :Air Traffic Safety Oversight Service
  • AP :Acquisition Plan
  • APB :Acquisition Program Baselines
  • API :FAA Office of International Aviation
  • APM :Approach Path Monitor
  • APP :Approach
  • APS :Airport Planning Standard
  • APTS :Automated Personnel Tracking System
  • APTS :AVN (Aviation Systems Standards) Process Tracking System
  • AQAFO :Aeronautical Quality Assurance Field Office
  • AQS :FAA Office of Quality, Integration and Executive Services
  • ARA :Research and Acquisition
  • ARAC :Army Radar Approach Control (AAF)
  • ARAC :Aviation Rulemaking Advisory Committee
  • ARC :Administrator's Review Committee
  • ARC :Airlines Reporting Corporation
  • ARC :Aviation Review Committee
  • ARC :FAA Office of Regions and Center Operations
  • ARCTR :FAA Aeronautical Center or Academy
  • AREA :Automated En Route Air Traffic Control
  • ARF :Airport Reservation Function
  • ARFF :Aircraft Rescue and Fire Fighting
  • ARINC :Aeronautical Radio Incorporated
  • ARINC :Aeronautical Radio, Inc.
  • ARLNO :Airline Office
  • ARM :FAA Office of Rulemaking
  • ARO :Airport Reservation Office
  • ARP :Airport Reference Point
  • ARP :FAA Airports Organization
  • ARP :FAA Office of Airports
  • ARS :Air Traffic Requirements Service
  • ARS :Airport Surveillance Radar
  • ARS :Automated Reproduction System
  • ARSA :Airport Service Radar Area
  • ARSR :Air Route Surveillance Radar
  • ARSR :Long Range Surveillance Radar
  • ARTCC :Air Route Traffic Control Center
  • ARTS :Automated Radar Terminal System
  • ASAP :Aviation Safety Action Program
  • ASAS :Aviation Safety Analysis System
  • ASC :AUTODIN Switching Center
  • ASCP :Aviation System Capacity Plan
  • ASD :Aircraft Situation Display
  • ASDA :Accelerate Stop Distance Available
  • ASDE :Area Surveillance Detection Equipment - (Radar)
  • ASDE-X :Airport Surface Detection Equipment
  • ASH :FAA Office of Security & Hazardous Materials
  • ASI :Aviation Safety Inspector
  • ASIAS :Aviation Safety Information Analysis and Sharing
  • ASLAR :Aircraft Surge Launch And Recovery
  • ASM :Available Seat Mile
  • ASO :Southern Region
  • ASOS :Automated Surface Observing System
  • ASOS :Automated Surface Observing Systems
  • ASP :Arrival Sequencing Program
  • ASPM :Aviation System Performance Metrics
  • ASPM :Aviation System Performance Metrics
  • ASQP :Airline Service Quality Performance
  • ASR :Airport Surveillance Radar
  • ASR :Airways Facilities Spectrum Policy and Management
  • ASR :Alkali Silica Reactivity
  • ASR :Terminal Surveillance Radar
  • ASR-WSP :Airport Surveillance Radar-Weather System Processor
  • AST :FAA Office of Commercial Space Transportation
  • ASTA :Airport Surface Traffic Automation
  • ASV :Airline Schedule Vendor
  • ASW :Southwest Region
  • ASYNC :Asynchronous Concentrator
  • AT :Air Traffic
  • AT&T :American Telephone and Telegraph
  • AT&T :ASDC AT&T Agency Service Delivery Center
  • AT&T :CSA AT&T Customer Support Associate
  • ATA :Air Transport Association of America
  • ATA :Airline Transport Association
  • ATAS :Airspace and Traffic Advisory Service
  • ATC :Air Traffic Control
  • ATCA :Air Traffic Control Association
  • ATCAA :Air Traffic Control Assigned Airspace
  • ATCAA :ATC Assigned Airspace
  • ATCBI :Maintenance of Air Traffic Control Beacon Indicator
  • ATCCC :Air Traffic Control Command Center
  • ATCO :Air Taxi Commercial Operator
  • ATCOTS :Air Traffic Control Optimum Training Solutions
  • ATCRB :Air Traffic Control Radar Beacon
  • ATCRBS :Air Traffic Control Radar Beacon System
  • ATCS :Air Traffic Control Specialist
  • ATCSCC :Air Traffic Control Systems Command Center
  • ATCT :Airport Traffic Control Tower
  • ATIDS :Airport Surface Target Identification System
  • ATIS :Automated Terminal Information Service
  • ATIS :Automatic Terminal Information Service
  • ATIS :Automatic Terminal Information Service
  • ATISR :ATIS Recorder
  • ATM :Air Traffic Management
  • ATM :Air Traffic Manager
  • ATM :Asynchronous Transfer Mode
  • ATMAC :Air Traffic Management Advisory Committee
  • ATMS :Advanced Traffic Management System
  • ATMS :Automated Training Management System
  • ATN :Aeronautical Telecommunications Network
  • ATO :Air Traffic Organization
  • ATODN :AUTODIN Terminal (FUS)
  • ATOMS :Air Traffic Operations Management System
  • ATOP :Advanced Technologies and Oceanic Procedures
  • ATOS :Air Transportation Oversight System
  • ATOVN :AUOTVON (Facility)
  • ATR :Air Traffic Requirements
  • ATREP :Air Traffic Representative
  • ATS :Air Traffic Services
  • ATSAP :Air Traffic Safety Action Program
  • ATSCCP :ATS Contingency Command Post
  • ATSS :Airway Transportation Systems Specialist
  • ATTIS :AT&T Information Systems
  • AUTODIN :DoD Automatic Digital Network
  • AUTOVON :DoD Automatic Voice Network
  • AVN :Aviation Standards National Field Office, Oklahoma City
  • AVN :Aviation System Standards
  • AVON :AUTOVON Service
  • AVS :FAA Office of Aviation Safety
  • AVSI :Aerospace Vehicle Systems Institute
  • AWIS :Airport Weather Information
  • AWOS :Automated Weather Observing System
  • AWP :Aviation Weather Processor
  • AWP :Western Pacific Region
  • AWPG :Aviation Weather Products Generator
  • AWS :Air Weather Station
  • AWSS :Automated Weather Sensors System
  • AWTT :Aviation Weather Technology Transfer
  • AXX :One of the 9 Regional Offices

B

  • BA :Budget Analyst
  • BAD :Budget Analysis Database
  • BANS :BRITE Alphanumeric System
  • BART :Billing Analysis Reporting Tool (GSA software tool)
  • BASIC :Basic Contract Observing Station
  • BASOP :Military Base Operations
  • BCA :Benefit/Cost Analysis
  • BCR :Benefit/Cost Ratio
  • BDAT :Digitized Beacon Data
  • BERMS :Beacon Environmental Remote Monitoring Subsystem
  • BFO :Backfill Overtime
  • BFO :Blazing Flash of the Obvious (DOD)
  • BIM :Building Information Modeling
  • BIP :Backup Interface Processor
  • BMP :Best Management Practices
  • BOC :Bell Operating Company
  • BOD :Beneficial Occupancy Date
  • BPB :Business Plan Builder
  • BPS :Bits Per Second
  • BRI :Basic Rate Interface
  • BRITE :Bright Radar Indicator Terminal Equipment
  • BRITE :Bright Radar Indicator Tower Equipment
  • BRL :Building Restriction Line
  • BUEC :Back-up Emergency Communications
  • BUECE :Back-up Emergency Communications Equipment

C

  • C&A :Certification and Accreditation
  • C/S/S/N :Capacity/Safety/Security/Noise
  • CA :Conflict Alert
  • CAA :Civil Airworthiness Authority
  • CAA :Civil Aviation Authority
  • CAA :Clean Air Act
  • CAAFI :Commercial Aviation Alternative Fuels Initiative
  • CAASD :Center for Advanced Aviation System Development
  • CAB :Civil Aeronautics Board
  • CAD :Computer-aided Design
  • CAD :Computer-aided Drawing
  • CAD :Computer-aided Design
  • CAEG :Computer-aided Engineering Graphics
  • CAI :Contractor-Acceptance Inspection
  • CAIRS :Cable Assignment Information Retrieval System
  • CAMI :Civil Aerospace Medical Institute
  • CAP :Civil Air Patrol
  • CAR :Civil Aviation Regulations
  • CARAT :Center for Aviation Research and Aerospace Technology
  • CARF :Central Altitude Reservation Facility
  • CARF :Central Altitude Reservation Function
  • CARS :Civilian Air Routes System
  • CARSR :Common Air Route Surveillance Radar
  • CARTS :Common Automated Radar Terminal System
  • CAS :Cost Accounting System
  • CASA :Controller Automated Spacing Aid
  • CASFO :Civil Aviation Security Office
  • CASS :Continuing Analysis and Surveillance System
  • CASST :Commercial Aviation Safety Strategic Team
  • CAST :Certification Authority Software Team
  • CASTLE :Consolidated Automated System for Time and Labor Entry
  • CAT :Category
  • CAT :Clear Air Turbulence
  • CATTS :Computerized Air Traffic Training System
  • CATX :Categorical Exclusion
  • CAU :Crypto Ancillary Unit
  • CBI :Computer Based Instruction
  • CC :Construction Coordinator
  • CC&O :Customer Cost and Obligation
  • CCC :Communications Command Center
  • CCCC :Staff Communications
  • CCCH :Central Computer Complex Host
  • CCS7-NI :Communication Channel Signal-7 Network Interconnect
  • CCSD :Command Communications Service Designator
  • CCU :Central Control Unit
  • CD :Common Digitizer
  • CD :Compact Disc
  • CD-ROM :Compact Disc Read-Only Memory
  • CDA :Continuous Descent Arrival
  • CDB :Corporate Database
  • CDC :Computer Display Channel
  • CDD :Corporate Data Dictionary
  • CDL :Configuration Deviation List
  • CDM :Collaborative Decision Making
  • CDR :Cost Detail Report
  • CDRA :Cooperative Research and Development Agreement
  • CDS :Central Dispatch System
  • CDT :Controlled Departure Time
  • CDTI :Cockpit Display of Traffic Information
  • CDV :Compressed Digital Video
  • CED :Categorical Exclusion Determination
  • CENRAP :Center Radar Arts Presentation
  • CENTX :Central Telephone Exchange
  • CEP :Capacity Enhancement Program
  • CEQ :Council on Environmental Quality
  • CERAP :Center Radar Approach Control
  • CERAP :Central Radar Approach
  • CFC :Central Flow Control
  • CFCF :Central Flow Control Facility
  • CFCS :Central Flow Control Service
  • CFI :Certified Flight Instructor
  • CFIT :Controlled Flight Into Terrain
  • CFR :Code of Federal Regulations
  • CFWP :Central Flow Weather Processor
  • CFWU :Central Flow Weather Unit
  • CG :Center of Gravity
  • CGAS :Coast Guard Air Station
  • CHI :Computer Human Interface
  • CIO :Chief Information Officer
  • CIP :Capital Investment Plan
  • CISO :Chief Information Security Officer
  • CIWS :Corridor Integrated Weather System
  • CLC :Course Line Computer
  • CLEEN :Continuous Lower Energy, Emissions & Noise
  • CLIN :Contract Line Item
  • CLT :Calculated Landing Time
  • CM :Configuration Management
  • CMAP :Center Mapping Automation Program
  • CMFO :Certificate Management Field Office
  • CMIS :Certificate Management Information System
  • CMO :Certificate Management Office
  • CMU :Certificate Management Unit
  • CNMPS :Canadian Minimum Navigation Performance Specification Airspace
  • CNS :Communications, Navigation and Surveillance
  • CNS :Consolidated NOTAM System
  • CNSP :Consolidated NOTAM System Processor
  • CO :Central Office
  • CO :Contracting Officer
  • COE :Center of Excellence
  • COE :U.S. Army Corps of Engineers
  • COMCO :Command Communications Outlet
  • CONOPS :Concept of Operations
  • CONUS :Continental United States
  • COOP :Continuity of Operations Plan
  • CORP :Private Corporation other than ARINC or MITRE
  • COTR :Contracting Officer's Technical Representative
  • COTR :Contracting Officer's Technical Representative
  • COTS :Commercial Off-the-Shelf
  • CP :Conflict Probe
  • CPC :Certified Professional Controller
  • CPCS :Consolidated Production Control System
  • CPDLC :Controller Pilot Data Link Communications
  • CPE :Customer Premise Equipment
  • CPIC :Capital Planning and Investment Control
  • CPMIS :Consolidated Personnel Management Information System
  • CRA :Conflict Resolution Advisory
  • CRC :Coordinating Research Council
  • CRDA :Converging Runway Display Aid
  • CRDA :Cooperative Research & Development Agreement
  • CRM :Crew Resource Management
  • CRT :Cathode Ray Tube
  • CSA :Central Service Area
  • CSA :Communications Service Authorization
  • CSA :Comparative Safety Assessment
  • CSA :Central Service Area
  • CSAP :Combined Services Access Point
  • CSAP :Common Services Access Point
  • CSC :Central Service Center
  • CSC :Central Service Center
  • CSER :Contractor Site Engineering Report
  • CSIS :Centralized Storm Information System
  • CSMC :Cyber Security Management Center
  • CSO :Customer Service Office
  • CSR :Communications Service Request
  • CSS :Central Site System
  • CSTA :Chief Scientist and Technical Advisor
  • CSTWRK :Cost Work
  • CTA :Control Area
  • CTA :Controlled Time of Arrival
  • CTA/FIR :Control Area/Flight Information Region
  • CTAF :Common Traffic Advisory Frequency
  • CTAS :Center TRACON Automation System
  • CTMA :Center Traffic Management Advisor
  • CUPS :Consolidated Uniform Payroll System
  • CVFR :Controlled Visual Flight Rules
  • CVTS :Compressed Video Transmission Service
  • CW :Continuous Wave
  • CWO :Contract Weather Observer
  • CWP :Central Weather Processor
  • CWP :Corporate Work Plan
  • CWSU :Central Weather Service Unit
  • CWY :Clearway

D

  • D-ATIS :Digital - Automatic Terminal Information Service
  • DA :Decision Altitude/Decision Height
  • DA :Descent Advisor
  • DA :Direct Access
  • DA/H :Decision Altitude/Height
  • DABBS :DITCO Automated Bulletin Board System
  • DACS :Digital Aeronautical Chart Supplement
  • DADS :Digital Aeronautical Database System
  • DAFIS :Departmental Accounting and Financial Information System
  • DAIR :Direct Altitude and Identity Readout
  • DALR :Digital Audio Legal Recorder
  • DAR :Designated Agency Representative
  • DARC :Direct Access Radar Channel
  • DARP :Dynamic Aircraft Route Planning
  • DASI :Digital Altimeter Setting Indicator
  • DASR :Digital Airport Surveillance Radar
  • DB :Database
  • dB :Decibel
  • DBA :Database Administrator
  • dBA :Decibels A-Weighted
  • DBCRC :Defense Base Closure and Realignment Commission
  • DBE :Disadvantaged Business Enterprise
  • DBMS :Data Base Management System
  • DBRITE :Digital Bright Radar Indicator Tower Equipment
  • DCA :Defense Communications Agency
  • DCAA :Dual Call, Automatic Answer Device
  • DCC :Direct Channel Complex
  • DCCU :Data Communications Control Unit
  • DCE :Data Communications Equipment
  • DDA :Dedicated Digital Access
  • DDD :Direct Distance Dialing
  • DDM :Difference in Depth of Modulation
  • DDS :Digital Data Service
  • DEA :Drug Enforcement Agency
  • DEDS :Data Entry and Display System
  • DEIS :Draft Environmental Impact Statement
  • DEM :Digital Elevation Model
  • DEP :Departure
  • DEWIZ :Distance Early Warning Identification Zone
  • DF :Direction Finder
  • DFAX :Digital Facsimile
  • DFI :Direction Finding Indicator
  • DFL :Daily Flight Log
  • DFM :Departure Flow Management
  • DGNSS :Differential Global Navigation Satellite System
  • DGPS :Differential Global Positioning Satellite (System)
  • DGPS :Differential Global Positioning System
  • DH :Decision Height
  • DHS :Department of Homeland Security
  • DIA :Denver International Airport
  • DID :Direct Inward Dial
  • DIP :Drop and Insert Point
  • DIRF :Direction Finding
  • DISU :Drug Investigation Support Unit
  • DITCO :Defense Information Technology Contracting Office Agency
  • DLAP :Data Link Applications Processor
  • DLRS :Digital Legal Recording System
  • DME :Distance Measuring Equipment
  • DME/P :Precision Distance Measuring Equipment
  • DMN :Data Multiplexing Network
  • DMRS :Database Management Reporting System
  • DMS :Data Management System
  • DMS :Drawing Management System
  • DNL :Day-Night Equivalent Sound Level
  • DOD :Department of Defense
  • DOD :Direct Outward Dial
  • DOF :Digital Obstacle File
  • DOI :Department of Interior
  • DOS :Department of State
  • DOT :Department of Transportation
  • DOTCC :Department of Transportation Computer Center
  • DOTS :Dynamic Ocean Track System
  • DOTS :Dynamic Ocean Tracking System
  • DOVE :DSR Oceanic VSCS En Route Implementation Working Group
  • DP :Departure Procedures
  • DPE :Designated Pilot Examiner
  • DR :Disaster Recovery
  • DRP :Disaster Recovery Plan
  • DSCS :Digital Satellite Compression Service
  • DSG :Data Services Group
  • DSP :Departure Sequencing Program
  • DSR :Display System Replacement
  • DSS :Decision Support System
  • DSUA :Dynamic Special Use Airspace
  • DTED :Digital Terrain Elevation Data
  • DTM :Digital Terrain Model
  • DTS :Dedicated Transmission Service
  • DUAT :Direct User Access Terminal
  • DUATS :Direct User Access Terminal System
  • DVD :Digital Versatile Disk
  • DVFR :Day Visual Flight Rules
  • DVFR :Defense Visual Flight Rules
  • DVOF :Digital Vertical Obstruction File
  • DVOR :Doppler Very High Frequency Omni Directional Range
  • DVOR :Doppler Very High Frequency Omni-- Directional Range
  • DVRS :Digital Voice Recorder System
  • DYSIM :Dynamic Simulator

E

  • E-MSAW :En Route Automated Minimum Safe Altitude Warning
  • EA :Enterprise Architecture
  • EA :Environmental Assessment
  • EARS :En Route Analysis and Reporting System
  • EARTS :En Route Automated Radar Tracking System
  • EASA :European Aviation Safety Agency
  • EBC :Event Based Currency
  • EBUS :Enhanced Backup Surveillance
  • EC :Engineering Center
  • ECG :En Route Communications Gateway
  • ECOM :En Route Communications
  • eCPIC :Electronic Capital Planning Investment Control
  • ECVFP :Expanded Charted Visual Flight Procedures
  • EDC :Early Display Configuration
  • EDC :En Route Departure Capability
  • EDC :Enterprise Data Center
  • EDCT :Estimated Departure Control Time
  • EDCT :Expedite Departure Path
  • EDDA :Environmental Due Diligence Audit
  • EDI :Electronic Data Interchange
  • EDMS :Electronic Document Management Systems
  • EDMS :Emissions and Dispersion Modeling System
  • EDS :Enterprise Database System
  • EEO :Equal Employment Opportunity
  • EFAS :En Route Flight Advisory Service
  • EFB :Electronic Flight Bag
  • EFC :Expect Further Clearance
  • EFIS :Electronic Flight Information Systems
  • EFSTS :Electronic Flight Strip Transfer System
  • EIAF :Expanded Inward Access Features
  • EIS :Environmental Impact Statement
  • ELD :Electrical Load Database
  • eLMS :Electronic Learning Management System
  • ELT :Emergency Locator Transmitter
  • ELWRT :Electrowriter
  • EMAS :Engineered Materials Arresting System
  • EMPS :En Route Maintenance Processor System
  • EMS :Environmental Management System
  • ENAV :En Route Navigational Aids
  • EOF :Emergency Operating Facility
  • eOPF :Electronic Official Personnel File
  • EOSH :Environmental and Occupational Safety & Health
  • EOSH :Environmental Compliance Occupational Safety and Health
  • EPA :Environmental Protection Agency
  • EPI :Element Performance Inspection
  • EPS :Engineered Performance Standards
  • EPSS :Enhanced Packet Switched Service
  • ERAD :En Route Broadband Radar
  • ERAM :En Route Automation Modernization
  • ERIDS :En Route Information Display System
  • ERIT :Enhanced Radar Intelligent Tool
  • ERM :En Route Spacing Program
  • ERMS :Environmental Remote Monitoring System
  • ES&H :Environmental Safety and Health
  • ESA :Eastern Service Area
  • ESC :Eastern Service Center
  • ESC :Enterprise Service Center
  • ESC :Eastern Service Center
  • ESEC :En Route Broadband Secondary Radar
  • ESF :Extended Superframe Format
  • ESIS :Enhanced Status Information System
  • ESIS :Environmental Safety Information System
  • ESP :En Route Spacing Program
  • ESP :En Route Sequencing Program
  • ESRI :Environmental Systems Research Institute
  • ESYS :En Route Equipment Systems
  • ETA :Estimated Time of Arrival
  • ETE :Estimated Time En Route
  • ETG :Enhanced Target Generator
  • ETMS :Enhanced Traffic management Systems
  • ETN :Electronic Telecommunications Network
  • ETO :Engineering Technical Officer
  • ETVCT :En Route Training Voice Communication Tool
  • ETVS :Enhanced Terminal Voice Switch
  • EUROCAE :European Organization for Civil Aviation Equipment
  • EVAS :Enhanced Vortex Advisory System
  • EVCS :Emergency Voice Communications System
  • EVFR :Electronic Visual Flight Rules
  • EVM :Earned Value Management

F

  • F&E :Facilities and Equipment
  • FAA :Federal Aviation Administration
  • FAAAC :FAA Aeronautical Center
  • FAACIS :FAA Communications Information System
  • FAASTeam :FAA Safety Team
  • FAATC :FAA Technical Center
  • FAATC :Federal Aviation Administration Technical Center
  • FAATSAT :FAA Telecommunications Satellite
  • FAATSAT :Federal Aviation Administration Telecommunications Satellite
  • FAC :Facility
  • FACUTL :Facility Utilization System
  • FADE :FAA/Airline Data Exchange
  • FAF :Final Approach Fix
  • FAIRS :Federal Aircraft Management Information System
  • FAMIS :Federal Air Marshal Information System
  • FANS :Future Air Navigation System
  • FAP :Final Approach Point
  • FAPM :FTS2000 Associate Program Manager
  • FAQ :Frequently Asked Questions
  • FAR :Federal Aviation Regulation
  • FARM :Fielded Automation Requirements Management
  • FASC :FAA Aviation Safety Center
  • FAST :Final Approach Spacing Tool
  • FAX :Facsimile Equipment
  • FBO :Fixed Base Operator
  • FBS :Fall Back Switch
  • FCC :Federal Communications Commission
  • FCLT :Freeze Calculated Landing Time
  • FCM :Flight Schedule Monitor
  • FCOM :FSS Radio Voice Communications
  • FCPU :Facility Central Processing Unit
  • FCT :Federal Contract Tower
  • FDAT :Flight Data
  • FDAT :Flight Data Entry and Printout (FDEP) and Flight Data Service
  • FDE :Flight Data Entry
  • FDEP :Flight Data Entry and Printout
  • FDIO :Flight Data Input/Output
  • FDIOC :Flight Data Input/Output Center
  • FDIOR :Flight Data Input/Output Remote
  • FDM :Frequency Division Multiplexing
  • FDMSAW :Fully Digital Minimum Safe Altitude Warning
  • FDP :Flight Data Processing
  • FDP/RDP :Flight Data Processing/Radar Data Processing
  • FDR :Federal Data Registry
  • FDT :Flight Deck Training Program
  • FED :Federal
  • FEIS :Final Environmental Impact Statement
  • FEODP :Flight Edit and On-Demand Printing
  • FEP :Front End Processor
  • FERS :Facility and Equipment Reporting System
  • FFAC :From Facility
  • FFLA :Flexible Flight Level Assignment
  • FFRDC :Federal Funded Research & Development Center
  • FIAO :Flight Inspection Area Office
  • FICO :Flight Inspection Central Office
  • FIFO :Flight Inspection Field Office
  • FIG :Flight Inspection Group
  • FINO :Flight Inspection National Field Office
  • FIO :Flight Inspection Office
  • FIP :Facility Improvement Program
  • FIPS :Federal Information Publication Standard
  • FIR :Flight Information Region
  • FIRE :Fire Station
  • FIRMR :Federal Information Resource Management Regulation
  • FIRPS :Flight Inspection Reports Processing System
  • FIS :Flight Information Services
  • FISDL :Flight Information Services Data Link
  • FISMA :Federal Information Security Management Act of 2002
  • FISMA :Federal Information Security Management Act of 2002
  • FITS :FAA/Industry Training Standards
  • FL :Flight Level
  • FLDS :Flight Loads Data System
  • FLIP :Flight Information Publication
  • FLM :Front Line Manager
  • FLOWSIM :Traffic Flow Planning Simulation
  • FLSA :Fair Labor Standards Act
  • FLTCK :Flight Check
  • FMA :Final Monitor Aid
  • FMC :Frontline Managers Courses
  • FMF :Facility Master File
  • FMIS :FTS2000 Management Information System
  • FMO :Facility Management Office
  • FMP :Field Maintenance Party
  • FMS :Financial Management System
  • FMS :Flight Management System
  • FNMS :FTS2000 Network Management System
  • FOD :Foreign Object Damage
  • FOIA :Freedom of Information Act
  • FOMS :Flight Operations Management System
  • FONSI :Finding of No Significant Impact
  • FOQA :Flight Operations Quality Assurance
  • FOTS :Fiber Optics Transmission System
  • FOUO :For Official Use Only
  • FP :Flight Plan
  • FPI :Fluorescent Penetrate Inspection
  • FPL :Full Performance Level
  • FPO :Flight Procedures Office
  • FPPS :Federal Personnel Payroll System
  • FPS :Military Primary Radar
  • FRC :Request Full Route Clearance
  • FRD :Facility Reference Data
  • FRMS :Facility Roster Management System
  • FS :Flight Standards
  • FSAS :Flight Service Automation System
  • FSCAP :Flight Safety Critical Aircraft Parts
  • FSDO :Flight Standards District Office
  • FSDPS :Flight Service Data Processing System
  • FSEP :Facility, Service, and Equipment Profile
  • FSFO :Flight Standards Field Office
  • FSIAG :Flight Service Information Area Group
  • FSM :Flight Schedule Monitor
  • FSP :Flight Strip Printer
  • FSPD :Freeze Speed Parameter
  • FSRM :Facility Security Risk Management
  • FSS :Flight Service Station
  • FSSA :Flight Service Station Automated Service
  • FST :Fuel Storage Tanks
  • FSTS :Federal Secure Telephone Service
  • FSYS :Flight Service Station Equipment Systems
  • FTE :Full Time Equivalent
  • FTI :FAA Telecommunications Infrastructure
  • FTP :File Transfer Protocol
  • FTS :Federal Telecommunications System
  • FTS2000 :Federal Telecommunications System 2000
  • FUS :Functional Units or Systems
  • FWCS :Flight Watch Control Station
  • FWS :FAA Weather Service
  • FY :Fiscal Year

G

  • GA :General Aviation
  • GAA :General Aviation Activity
  • GAAA :General Aviation Activity and Avionics
  • GADO :General Aviation District Office
  • GAO :Government Accountability Office
  • GAO :Government Accounting Office
  • GCA :Ground Control Approach
  • GDE :Ground Delay Enhancements
  • GDP :Ground Delay Program
  • GENOT :General Notice
  • GETS :Government Emergency Telecommunications Service
  • GETS :Grievance Electronic Tracking System
  • GFE :Government Furnished Equipment
  • GFM :Government Furnished Materials
  • GFP :Government Furnished Property
  • GIS :Geographic Information System
  • GLONASS :Global Orbiting Navigational Satellite System
  • GMCC :General National Airspace System Maintenance Control Center
  • GML :Geography Markup Language
  • GMS :Grants Management System
  • GNAS :General National Airspace System
  • GNSS :Global Navigation Satellite System
  • GOES :Geostationary Operational Environmental Satellite
  • GOESF :GOES Feed Point
  • GOEST :GOES Terminal Equipment
  • GOMP :Gulf of Mexico Program
  • GPO :Government Printing Office
  • GPRA :Government Performance and Results Act
  • GPS :Global Positioning Satellite
  • GPS :Global Positioning System
  • GPWS :Ground Proximity Warning System
  • GRADE :Graphical Airspace Design Environment
  • GS :Glide Slope
  • GS :Glide Slope Indicator
  • GSA :General Services Administration
  • GSE :Ground Support Equipment
  • GTM :General Terrain Model
  • GUI :Graphic User Interface
  • GWDS :Graphic Weather Display System

H

  • HAA :Height Above Airport
  • HAL :Height Above Landing
  • HARS :High Altitude Route System
  • HAT :Height Above Touchdown
  • HAZMAT :Hazardous Materials
  • HCAP :High Capacity Carriers
  • HCS :Host Computer System
  • HDME :NDB with Distance Measuring Equipment
  • HDQ :FAA Headquarters
  • HDR :Hardware Discrepancy Report
  • HELI :Heliport
  • HEMS :Helicopter Emergency Medical Service
  • HF :High Frequency
  • HI-EFAS :High Altitude EFAS
  • HID :Host Interface Display
  • HID/NAS/LAN :Host Interface Device/National Airspace System/Local Area Network
  • HIRL :High Intensity Runway Lights
  • HLDC :High Level Data Link Control
  • HMI :Hazardously Misleading Information
  • HOV :High Occupancy Vehicle
  • HQ :FAA Headquarters
  • HSI :Horizontal Situation Indicators
  • HSPD :Homeland Security Presidential Directive
  • HUD :Heads Up Display
  • HUD :Housing and Urban Development
  • HUMS :Health & Usage Monitoring Systems
  • HVAC :Heating, Ventilating, and Air Conditioning
  • HWAS :Hazardous In-Flight Weather Advisory
  • Hz :Hertz

I

  • I&I :Impact and Implementation
  • I/AFSS :International AFSS
  • IA :Indirect Access
  • IA :Information Assurance
  • IAF :Initial Approach Fix
  • IAP :Instrument Approach Procedures
  • IAPA :Instrument Approach Procedures Automation
  • IAR :Investment Analysis Report
  • IAS :Investment Analysis Staff
  • IAT :Investment Analysis Team
  • IATA :International Air Transport Association
  • IBM :International Business Machines
  • IBP :International Boundary Point
  • IBR :Intermediate Bit Rate
  • IC :Implementation Center
  • ICAO :International Civil Aviation Organization
  • iCMM :integrated Capability Maturity Model
  • ICMS :Integrated Control and Monitor System
  • ICSS :Integrated Communications Switching System
  • ICSS :International Communications Switching Systems
  • ID :Identification
  • IDAT :Interfacility Data
  • IDP :Individual Development Plan
  • IDS :Intrusion Detection System
  • IF :Intermediate Fix
  • IFB :Invitation For Bid
  • IFCP :Interfacility Communications Processor
  • IFDS :Interfacility Data System
  • IFEA :In-Flight Emergency Assistance
  • IFO :International Field Office
  • IFP :Instrument Flight Procedures
  • IFPA :Instrument Flight Procedures Automation Program
  • IFR :Instrument Flight Rules
  • IFSS :International Flight Service Station
  • IG :Inspector General
  • IGIA :Interagency Group on International Aviation
  • IIE :Integrated Information Environment
  • ILM :Inventory Logistics and Maintenance Suite
  • ILS :Instrument Landing System
  • ILSP :Integrated Logistics Support Plan
  • IM :Inner Marker
  • IMC :Instrument Meteorological Conditions
  • INM :Integrated Noise Model
  • INS :Inertial Navigation System
  • IOC :Initial Operating Capability
  • IOC :Initial Operating Condition
  • IOT&E :Independent Operational Test and Evaluation
  • IP :Internet Protocol
  • IPDS :Instrument Procedure Development System
  • IPMS :IT Program Management System
  • IPR :In Process Review
  • IPT :Integrated Product Team
  • iRCAS :Intranet Radio Coverage Analysis System
  • IRD :Initial Requirements Document
  • IRM :Information Resource Management
  • IRMC :Integrated Risk Management Checklist
  • IRMP :Information Resources Management Plan
  • ISBP :Information Security Business Portal
  • ISC :Initial System Capability
  • ISDN :Integrated Services Digital Network
  • ISMLS :Interim Standard Microwave Landing System
  • ISO :Information System Owner
  • ISS :Information Systems Security
  • ISSCA :Information Systems Security Certification Agent
  • ISSM :Information Systems Security Manager
  • ISSO :Information Systems Security Officer
  • IST :InterService Team
  • IT :Information Technology
  • ITC :In-Trail Climb
  • ITD :In-Trail Descent
  • ITEB :Information Technology Executive Board
  • ITI :Interactive Terminal Interface
  • ITIL :Information Technology Infrastructure Library
  • ITMRA :Information Technology Management Reform Act
  • ITSM :Information Technology Service Management
  • ITWS :Integrated Terminal Weather System
  • IVRS :Interim Voice Response System
  • IVSR :Interim Voice Switch Replacement Program
  • IVT :Interactive Video Teletraining
  • IW :Inside Wiring
  • IWGDS :Interim Weather Graphic-Display System

J

  • J2EE :Java 2 Enterprise Edition
  • JAI :Joint Acceptance Inspection
  • JCN :Job Control Number
  • JPDO :Joint Planning and Development Office
  • JRC :Joint Resources Council
  • JSS :Joint Surveillance System

K

  • Kbps :Kilobits Per Second
  • KCAS :Knots Calibrated Airspeed
  • kHz :Kilohertz
  • KIAS :Knots Indicated Airspeed
  • KSN :Knowledge Services Network
  • KVDT :Keyboard Video Display Terminal

L

  • LAA :Local Airport Advisory
  • LAAS :Local Area Augmentation System
  • LAAS :Low Altitude Alert System
  • LABS :Leased A B Service
  • LABS :Los Angeles Basin Study
  • LABSC :LABS GS-200 Computer
  • LABSR :LABS Remote Equipment
  • LABSW :LABS Switch System
  • LAC :Logical Access Control
  • LAGPS :Local Area Global Positioning System
  • LAHSO :Land and Hold Short Operation
  • LAN :Local Area Network
  • LATA :Local Access and Transport Area
  • LAWRS :Limited Aviation Weather Reporting Service
  • LAWRS :Limited Aviation Weather Reporting System
  • LBR :LAN Based Random Access Plan Position Indicator
  • LBR :LAN Based Random Access Plan Position Indicator
  • LCC :Life Cycle Cost
  • LCF :Local Control Facility
  • LCGS :Low Cost Ground Surveillance Radar
  • LCN :Local Communications Network
  • LDA :Landing Directional Aid
  • LDA :Localizer Directional Aid
  • LDAP :Lightweight Directory Access Protocol
  • LDIN :Lead-In Lights
  • LDR :Labor Distribution Reporting
  • LEC :Local Exchange Carrier
  • LF :Low Frequency
  • LFDS :Large Facility Demarcation System
  • LFME :Local Flow Management Enhancements
  • LINCS :Leased Interfacility NAS Communications System
  • LIRL :Low Intensity Runway Lights
  • LIS :Logistics and Inventory System
  • LLWAS :Low Level Wind Shear Alert System
  • LM/MS :Low/Medium Frequency
  • LMM :Locator Middle Marker
  • LMS :Logistics Management Specialist
  • LMS :LORAN Monitor Site
  • LOA :Letter of Agreement
  • LOB :Line Of Business
  • LOC :Localizer
  • LOCID :Location Identifier
  • LOI :Letter of Intent
  • LOM :Compass Locator at Outer Marker
  • LOM :Locator Outer Marker
  • LORAN :Long-Range Aid to Navigation
  • LOV :List of Values
  • LPC :Logistics Program Coordinator
  • LPV :Lateral Precision Performance with Vertical Guidance
  • LPV :Localizer Performance with Vertical Guidance
  • LRCO :Limited Remote Communications Outlet
  • LRNAV :Long Range Navigation
  • LRR :Long Range Radar
  • LRRAP :Long Range Resource Allocation Plan
  • LSMS :Line Station Maintenance Section

M

  • M1FC :Model 1 Full Capacity
  • MAA :Maximum Authorized Altitude
  • MAC :Maintenance Action Code
  • MAC :Mean Aerodynamic Cord
  • MALS :Medium-Intensity Approach Lighting System
  • MALSF :Medium-Intensuty Approach Light System with Sequenced Flashers
  • MALSR :MALS with Runway Alignment Indicator Lights
  • MALSR :Medium-Intensity Approach Lighting System With Runway Alignment Indicator
  • MAM :Maintenance Assumed Monitoring
  • MAP :Maintenance Automation Program
  • MAP :Military Airport Program
  • MAP :Missed Approach Point
  • MAP :Missed Approach Procedure
  • MAP :Modified Access Pricing
  • MARSA :Military Assumes Responsibility for Separation
  • MASS :Maintenance Automation System Software
  • MBO :Management by Objectives
  • Mbps :Megabits Per Second
  • MBT :Maneuvers Based Training
  • MCA :Minimum Crossing Altitude
  • MCAS :Marine Corps Air Station
  • MCC :Maintenance Control Center
  • MCI :Mode C Intruder
  • MCK :Maintenance Check
  • MCL :Middle Compass Locater
  • MCS :Maintenance and Control System
  • MDA :Minimum Descent Altitude
  • MDCRS :Metereological Data Collection and Reporting System
  • MDFM :Material Delivery Forecast Module
  • MDT :Maintenance Data Terminal
  • MEA :Minimum Enroute Altitude
  • MEARTS :Micro-EARTS
  • MEL :Minimum Equipment List
  • METAR :Aviation Routine Weather Report
  • METI :Meteorological Information
  • MF :Middle Frequency
  • MFJ :Modified Final Judgment
  • MFO :Medical Field Office
  • MFT :Meter Fix Crossing Time/Slot Time
  • MHA :Minimum Holding Altitude
  • MHz :Megahertz
  • MIA :Minimum IFR Altitudes
  • MIDO :Manufacturing Inspection District Office
  • MIO :Manufacturing Inspection Office
  • MIRL :Medium Intensity Runway Lights
  • MIS :Management Information System
  • MIS :Meteorological Impact Statement
  • MISC :Miscellaneous
  • MISO :Manufacturing Inspection Satellite Office
  • MIT :Miles In Trail
  • MLS :Microwave Landing System
  • MM :Middle Marker
  • MMAC :Mike Monroney Aeronautical Center
  • MMC :Maintenance Monitoring Console
  • MMPI :Minnesota Multiphase Personality Inventory
  • MMR :Multi-Mode Receiver
  • MMS :Maintenance Monitoring System
  • MNPS :Minimum Navigation Performance Specification
  • MNPSA :Minimum Navigation Performance Specifications Airspace
  • MNS :Mission Needs Statement
  • MOA :Memorandum of Agreement
  • MOA :Military Operations Area
  • MOC :Memorandum of Cooperation
  • MOCA :Minimum Obstruction Clearance Altitude
  • MOCC :Mid-States Operations Control Center
  • MOD :Memorandum of Decision
  • MODE C :Altitude Reporting Mode of Secondary Radar
  • MODE S :Mode Select; Discrete Addressable Secondary Radar System With Data Link
  • MODEM :Modulator-Demodulator
  • MOS :Military Operations Specialst
  • MOU :Memorandum of Understanding
  • MPAR :Multi-function Phased Array Radar
  • MPO :Metropolitan Planning Organization
  • MPS :Maintenance Processor Subsystem (OR) Master Plan Supplement
  • MRA :Minimum Reception Altitude
  • MRC :Monthly Recurring Charge
  • MRM :Maintenance Returned Monitoring
  • MSA :Minimum Safe Altitude
  • MSAW :Minimum Safe Altitude Warning
  • MSD :Multi-Site Damage
  • MSDA :Material Safety Data Sheet
  • MSDS :Microsoft Data Engine
  • MSL :Mean Sea Level
  • MSN :Message Switching Network
  • MSR :Monthly Status Report
  • MTCS :Modular Terminal Communications System
  • MTD :Moving Target Detection
  • MTI :Moving Target Indicator
  • MTR :Military Training Route
  • MUX :Multiplexor
  • MVA :Minimum Vectoring Altitude
  • MVFR :Marginal Visual Flight Rules
  • MWP :Meteorological Weather Processor

N

  • N/A :Not Applicable
  • NAAQS :National Ambient Air Quality Standards
  • NACG :National Aeronautical Charting Group
  • NADA :NADIN Concentrator
  • NADIN :National Airspace Data Interchange Network
  • NADSW :NADIN Switches
  • NAILS :National Airspace Integrated Logistics Support
  • NAMS :NADIN IA
  • NAP :Needs Assessment Program
  • NAPM :National Associate Program Manager
  • NAPRS :National Airspace Performance Reporting System
  • NAR :National Airspace Review 66
  • NARACS :National Radio Communications System
  • NARP :National Aviation Research Plan
  • NAS :National Air Space
  • NAS :National Airspace System
  • NAS :National Airspace System or Naval Air Station
  • NASDC :National Aviation Safety Data
  • NASE :NAS Adaptation Services Environment
  • NASP :National Airspace System Plan
  • NASPAC :National Airspace System Performance Analysis Capability
  • NASR :National Airspace System Resources
  • NASTEP :National Airspace System Technical Evaluation Program
  • NATCA :National Air Traffic Control Association
  • NATCA :National Air Traffic Controllers Association
  • NATCO :National Communications Switching Center
  • NATS :National Air Traffic Service
  • NAVAID :Navigation Aid
  • NAVAIDS :Navigational Aids
  • NAVMN :Navigation Monitor and Control
  • NAWAU :National Aviation Weather Advisory Unit
  • NAWPF :National Aviation Weather Processing Facility
  • NBAA :National Business Aircraft Association
  • NBCAP :National Beacon Code Allocation Plan
  • NBCFAE :National Black Coalition of Federal Aviation Employees
  • NCAR :National Center for Atmospheric Research; Boulder, CO
  • NCF :National Control Facility
  • NCIU :NEXRAD Communications Interface Unit
  • NCP :NAS Change Proposal
  • NCP :Noise Compatibility Program
  • NCS :National Communications System
  • NSD :Navigation System Database
  • NDB :Non-directional Beacon
  • NDC :National Data Center
  • NDI :Nondestructive Inspection
  • NDNB :NADIN II
  • NDP :National Airspace System Defense Programs
  • NEC :National Electric Code
  • NED :National Elevation Data
  • NEM :Noise Exposure Map
  • NEMC :Network Enterprise Maintenance Center
  • NEPA :National Environmental Policy Act
  • NEXRAD :Next Generation Weather Radar
  • NextGen :Next Generation Air Transportation System
  • NFAX :National Facsimile Service
  • NFD :National Flight Database
  • NFDC :National Flight Data Center
  • NFDD :National Flight Data Digest
  • NFIS :NAS Facilities Information System
  • NFP :NIMS Premier Facility
  • NGA :National Geospatial-Intelligence Agency
  • NHCFAE :National Hispanic Coalition of Federal Aviation Employees
  • NI :Network Interface
  • NICS :National Airspace System Interfacility Communications System
  • NICS :National Interfacility Communications System
  • NIMA :National Imagery and Mapping Agency
  • NIMS :NAS Infrastructure Management System
  • NIPT :National Infrastructure Planning Team
  • NISC :NAS Implementation Support Contract
  • NISC :NAS Integration Support Contractor
  • NIST :National Institute of Standards and Technologies
  • NM :Nautical Mile
  • NMAC :Near Mid Air Collision
  • NMC :National Meteorological Center
  • NMCE :Network Monitoring and Control Equipment
  • NMCS :Network Monitoring and Control System
  • NOAA :National Oceanic and Atmospheric Administration
  • NOC :Notice Of Completion
  • NOCC :National Operation Control Center
  • NOG :National Operations Group
  • NOM :NAS Operations Manager
  • NOREP :National Oceanic Review and Enhancement Program
  • NOTAM :Notice to Airmen
  • NPDES :National Pollutant Discharge Elimination System
  • NPE :Non-primary Airport Entitlement
  • NPIAS :National Plan for Integrated Airport Systems
  • NPM :NAS Program Manager/Management
  • NPR :National Performance Review
  • NPRM :Notice of Proposed Rulemaking
  • NRC :Non-Recurring Charge
  • NRCS :National Radio Communications Systems
  • NRP :National Route Program
  • NSAP :National Service Assurance Plan
  • NSC :National Service Center
  • NSP :National Simulator Program
  • NSRCATN :National Strategy to Reduce Congestion on America's Transportation Network
  • NSSFC :National Severe Storms Forecast Center
  • NSSL :National Severe Storms Laboratory; Norman, OK
  • NSWRH :NWS Regional Headquarters
  • NTAP :Notices To Airmen Publication
  • NTP :National Transportation Policy
  • NTP :Notice to Proceed
  • NTS :NOTAM Tracking System
  • NTSB :National Transportation Safety Board
  • NTZ :No Transgression Zone
  • NWP :National Work Plan
  • NWP :NextGen Weather Processor
  • NWS :National Weather Service
  • NWSR :NWS Weather Excluding NXRD
  • NXRD :Advanced Weather Radar System

O

  • O&M :Operations and Maintenance
  • O21 :Ocean21
  • OAG :Official Airline Guide
  • OALT :Operational Acceptable Level of Traffic
  • OAMP :Off-Line Aircraft Management Program
  • OAP :Oceanic Automation Program
  • OAS :Oceanic Automation System
  • OASIS :Operational and Supportability Implementation System
  • OATS :Office Automation Technology Services
  • OAW :Off-airway Weather Station
  • OC4J :Oracle Containers for Java Enterprise Edition
  • OCA :Oceanic Control Area
  • OCC :Operations Control Center
  • OCDB :Oracle Content Database
  • ODAL :Omnidirectional Approach Lighting System
  • ODALS :Omnidirectional Approach Lighting Systems
  • ODAPS :Oceanic Display and Planning System
  • ODAPS :Oceanic Display and Processing Station
  • ODL :Oceanic Data Link
  • ODRA :Office of Dispute Resolution for Acquisition
  • ODS :Operational Data Store
  • OE :Obstacle Evaluation
  • OE/AAA :Obstruction Evaluation/Airport Airspace Analysis
  • OEM :Original Equipment Manufacturer
  • OEP :Operational Evolution Plan
  • OEP :Operational Evolution Plan / Partnership
  • OETS :Obstacle Evaluation Tracking System
  • OFA :Object Free Area
  • OFDPS :Offshore Flight Data Processing System
  • OFT :Outer Fix Time
  • OFZ :Obstacle Free Zone
  • OGC :Open Geospatial Consortium
  • OIG :Office of the Inspector General
  • OM :Outer Marker
  • OMB :Office of Management and Budget
  • OMEGA :Very Low Radio Navigation System
  • OMIC :Operations Manager in Charge
  • ONER :Oceanic Navigational Error Report
  • OPD :Optimum Profile Descent
  • OPI :Office of Primary Interest
  • OPLT :Operational Acceptable Level of Traffic
  • OPR :Office of Primary Responsibility
  • OPS :AF Operations
  • OPS :Operations
  • OPSNET :Operations Network
  • OPSW :Operational Switch
  • OPX :Off Premises Exchange
  • ORD :Operational Readiness Demonstration
  • ORD :Operational Readiness Demonstration - Milestone
  • ORS :Obstruction Repository System
  • OS :Operating System
  • OS :Operational Shakedown & Cutover
  • OSA :Operational Safety Assessment
  • OSD :Operational Suitability Demonstration
  • OSDS :Oceanic System Development and Support
  • OSHA :Occupational Safety and Health Administration
  • OSIP :Office Safety Inspection Program
  • OSRWG :Oceanic Separation Reduction Working Group
  • OST :Office of the Secretary of Transportation
  • OT&E :Operational Test and Evaluation
  • OTFO :Operations Technical Field Office
  • OTPS :Oceanic Traffic Planning System
  • OTR :Oceanic Transition Route
  • OTS :Organized Track System
  • OTS :Out of Service

P

  • P2R2 :Preferred Route Reduction Program
  • PA :Project Authorization
  • PABX :Private Automated Branch Exchange
  • PAD :Packet Assembler/Disassembler
  • PAM :Peripheral Adapter Module
  • PAMRI :Peripheral Adapter Module Replacement Item
  • PANS :Procedures for Air Navigation Services
  • PAPI :Precision Approach Path Indicator
  • PAR :Precision Approach Radar
  • PAR :Preferential Arrival Route
  • PAS :Project Assignment Sheet
  • PASS :Professional Airway System Specialists
  • PATS :Precision Approach Tracking System
  • PATWAS :Pilots Automatic Telephone Weather Answering Service
  • PBCT :Proposed Boundary Crossing Time
  • PBRF :Pilot Briefing
  • PBX :Private Branch Exchange
  • PCA :Positive Control Airspace
  • PCB :Personnel Compensation and Benefits
  • PCB&T :Personnel Compensation Benefits and Travel
  • PCM :Pulse Code Modulation
  • PCN :Project Control Number
  • PCPS :Purchase Card Processing System
  • PCS :Permanent Change of Station
  • PCS :Power Conditioning System
  • PCS :Production Control System
  • PDA :Personal Digital Assistant
  • PDAR :Preferential Arrival And Departure Route
  • PDC :Pre-Departure Clearance
  • PDC :Program Designator Code
  • PDF :Portable Document Format
  • PDN :Public Data Network
  • PDR :Preferential Departure Route
  • PDS :Proficiency Development Specialists
  • PED :Personal Electronic Devices
  • PFAST :Passive Final Approach Spacing Tool
  • PFC :Passenger Facility Charge
  • PFC :Porous Friction Course
  • PgMM :Program Management Methodology
  • PGP :Planning Grant Program
  • PHA :Preliminary Hazard Analysis
  • PHL :Preliminary Hazard List
  • PIC :Principal Interexchange Carrier
  • PIDP :Programmable Indicator Data Processor
  • PII :Personally Identifiable Information
  • PIM :Program Implementation Manager
  • PIP :Primary Interface Processor
  • PIP :Program Implementation Plan
  • PIREP :Pilot Weather Report
  • PjMM :Project Management Methodology
  • PjSA :Project Scope Agreement
  • PKI :Public Key Infrastructure
  • PM :Preventive Maintenance
  • PMA :Parts Manufacturer Approval
  • PMC :Project Materials Cumulative
  • PML :Project Material List
  • PMS :Program Management System
  • POC :Point-of-Contact
  • POCC :Pacific Operations Control Center
  • POP :Point-0f-Presence
  • POT :Point-of-Termination
  • PPE :Personal Protective Equipment
  • PPIMS :Personal Property Information Management System
  • PPR :Personal Property Report
  • PR :Procurement Request
  • PR :Project Review / Program Review
  • PRI :Primary Rate Interface
  • PRM :Precision Runway Monitor
  • PSC :Program Support Center
  • PSD :Process Support Document
  • PSDN :Public Switched Data Network
  • PSL :Projected Service Life
  • PSN :Packet Switched Network
  • PSR :Project Status Report
  • PSS :Packet Switched Service
  • PSTN :Public Switched Telephone Network
  • PT :Product Team
  • PTC :Presumed-to-Conform
  • PTR :Program Technical/Trouble Report
  • PTS :Procedures Tracking System
  • PUB :Publication
  • PUP :Principal User Processor
  • PVC :Permanent Virtual Circuit
  • PVD :Plan View Display
  • PWI :Proximity Warning Indicator

Q

  • QA :Quality Assurance
  • QAE :Quality Assurance Evaluator
  • QAR :Quality Assurance Resource
  • QC :Quality Control
  • QMS :Quality Management System

R

  • R&D :Research and Development
  • R,E&D :Research, Engineering and Development
  • RADLO :Regional Air Defense Liaison Office
  • RAIL :Runway Alignment Indicator Lights
  • RAPCO :Radar Approach Control (USAF)
  • RAPCON :Radar Approach Control
  • RAPCON :Radar Approach Control (FAA)
  • RAPPI :Random Access Plan Position Indicator
  • RASP :Regional Airport System Plan
  • RAT :Risk Assessment Team
  • RATCC :Radar Air Traffic Control Center
  • RATCF :Radar Air Traffic Control Facility (USN)
  • RBC :Rotating Beam Ceilometer
  • RBDPE :Radar Beacon Data Processing Equipment
  • RBPM :Remote Beacon Performance Monitor
  • RBSS :Radar Bomb Scoring Squadron
  • RCAG :Remote Communications Air/Ground
  • RCAS :Radio Coverage Analysis System
  • RCC :Rescue Coordination Center
  • RCCC :Regional Communications Control Center
  • RCE :Radio Control Equipment
  • RCF :Remote Communications Facility
  • RCIU :Remote Control Interface Unit
  • RCL :Radio Communications Link
  • RCLR :Radio Communications Link Repeater
  • RCLR :RCL Repeater
  • RCLT :RCL Terminal
  • RCM :Reliability Centered Maintenance
  • RCO :Remote Communications Outlet
  • RCU :Remote Control Unit
  • RD :Requirements Document
  • RDP :Radar Data Processing
  • RDSIM :Runway Delay Simulation Model
  • RDVS :Rapid Deployment Voice Switch
  • RE :Resident Engineer
  • REDAC :Research, Engineering & Development Advisory Committee
  • REDMACS :Research, Engineering, and Development Monitoring, Analysis and Control System
  • REGIS :Regional Information System
  • REIL :Runway End Identification Light
  • RF :Radio Frequency
  • RFI :Radio Frequency Interference
  • RFI :Request for Information
  • RFI :Return on Future Investment
  • RFQ :Request for Quotes
  • RIIEP :Runway Incursion Information Evaluation Program
  • RIP :Runway Incursion Program
  • RM :Risk Management
  • RMCC :Remote Monitor Control Center
  • RMCF :Remote Monitor Control Facility
  • RML :Radar Microwave Link
  • RMLR :RML Repeater
  • RMLS :Remote Monitoring and Logging System
  • RMLT :RML Terminal
  • RMM :Remote Maintenance Monitoring
  • RMMC :Remote Maintenance Monitoring and Control
  • RMMS :Remote Maintenance Monitoring System
  • RMMS :Remote Maintenance Monitoring Systems
  • RMS :Remote Maintenance Subsystem
  • RMS :Remote Monitoring Subsystem
  • RMS :Risk Management System
  • RMSC :Remote Monitoring Subsystem Concentrator
  • RMT :Resource Management Tool
  • RMT :Risk Management Team
  • RNAV :Area Navigation
  • RNP :Required Navigation Performance
  • RNP-10 :Required Navigation Performance
  • ROA :Record of Assistance
  • ROC :Regional Operations Center
  • ROD :Record of Decision
  • ROM :Read-Only Memory
  • ROSA :Report of Service Activity
  • ROSHM :Regional Occupational Safety and Health Manager
  • ROT :Runway Occupancy Time
  • RP :Restoration Priority
  • RPC :Restoration Priority Code
  • RPG :Radar Processing Group
  • RPI :Real Property Inventory
  • RPM :Rational Portfolio Manager
  • RPM :RTP Program Manager
  • RPMES :Regional Program Manager for Environment and Safety
  • RPOC :Risk Point-of-Contact
  • RPR :Real Property Report
  • RPV :Remotely Piloted Vehicle
  • RPZ :Runway Protection Zone
  • RRCS :Remote Radio Control System
  • RRH :Remote Reading Hygrothermometer
  • RRHS :Remote Reading Hydrometer
  • RRWDS :Remote Radar Weather Display
  • RRWSS :RWDS Sensor Site
  • RSA :Runway Safety Area
  • RSAP :Runway Safety Action Plan
  • RSAT :Runway Safety Action Team
  • RSL :Runway Status Light
  • RSS :Remote Speaking System
  • RT :Remote Transmitter
  • RT&BTL :Radar Tracking and Beacon Tracking Level
  • RTAD :Remote Tower Alphanumeric Display
  • RTCA :Radio Technical Commission for Aeronautics
  • RTDS :Radar Terminal Display System
  • RTE :Route
  • RTP :Regional Transportation Plan
  • RTR :Remote Transmitter/Receiver
  • RTRD :Remote Tower Radar Display
  • RTS :Return to Service
  • RUC :Rapid Update Cycle
  • RVM :Radar Video Map
  • RVR :Runway Visual Range
  • RVSM :Reduced Vertical Separation Minima
  • RW :Runway
  • RWP :Real-time Weather Processor
  • RWSL :Runway Status Lights
  • RWY :Runway
  • RX :Receiver

S

  • S/S :Sector Suite
  • SA :System Administrator
  • SAC :Strategic Air Command
  • SAFI :Semi Automatic Flight Inspection
  • SAGA :System Safety Approach for General Aviation
  • SAI :Safety Attribute Inspection
  • SALS :Short Approach Lighting System
  • SAMS :Special Use Airspace Management System
  • SAN :Storage Area Network
  • SAPS :Staffing and Personnel System
  • SAR :Search and Rescue
  • SARP :Standards and Recommended Practices
  • SAS :Safety Assurance System
  • SASO :System Approach for Safety Oversight
  • SAT :Security, Awareness, and Training System
  • SAT :SEOAT Analytical Team
  • SATCOM :Satellite Communications
  • SAVES :Strategic Sourcing for the Acquisition of Various Equipment and Supplies
  • SAWRS :Supplemental Aviation Weather Reporting Service
  • SAWRS :Supplementary Aviation Weather Reporting System
  • SBGP :State Block Grant Program
  • SBIR :Small Business Innovation Research
  • SBS :Surveillance Broadcast Services
  • SBT :Scenario Based Training
  • SCADA :Supervisory Control and Data Acquisition
  • SCAP :System Certification and Accreditation Package
  • SCAT :Staffing and Cost Analysis Tool
  • SCC :System Command Center
  • SCT :Southern California Area TRACON (Metroplex)
  • SCVTS :Switched Compressed Video Telecommunications Service
  • SDF :Simplified Direction Finding
  • SDF :Software Defined Network
  • SDIS :Switched Digital Integrated Service
  • SDLC :Software Development Life Cycle
  • SDP :Service Delivery Point
  • SDR :Service Difficulty Report
  • SDR :System Documentation Release
  • SDS :Switched Data Service
  • SEC :Strategic Event Coordination
  • SECM :Safety and Environmental Compliance Manager
  • SECRA :Secondary Radar
  • SEL :Single Event Level
  • SELF :Simplified Short Approach Lighting System With Sequenced Flashing Lights
  • SEOAT :Systems Engineering Operational Analysis Team
  • SERC :Software Engineering Resource Center
  • SET :Spacing Efficiency Tool
  • SETA :System Engineering and Technical Assistance
  • SFAR :Special Federal Aviation Regulations
  • SFAR-38 :Special Federal Aviation Regulation 38
  • SFD :Service Flow Diagram
  • SGI :Silicon Graphics Incorporated
  • SHPO :State Historic Preservation Officer
  • SHRP :Strategic Highway Research Program
  • SIAP :Standard Instrument Flight Procedure
  • SIC :Service Initiation Charge
  • SID :Standard Instrument Departure
  • SID :Station Identifier
  • SIGMET :Significant Meteorological Information
  • SIMMOD :Airspace and Airport Simulation Model
  • SIP :State Implementation Plan
  • SIR :Screening Information Request
  • SLEP :Service Life Extension Program
  • SM :Statute Mile
  • SMA :Surface Monitor Aid
  • SMA :Surface Movement Advisor
  • SMF :Systems Management Facility
  • SMGC :Surface Movement Guidance and Control
  • SMGCS :Surface Movement Guidance and Control System
  • SMMC :System Maintenance Monitor Console
  • SMO :System Management Office
  • SMPS :Sector Maintenance Processor Subsystem
  • SMS :Safety Management System
  • SMS :Simulation Modeling System
  • SMT :Schedule Management Toolset
  • SNR :Signal-to-Noise Ratio
  • SNT :Staffed NextGen Tower
  • SOAR :System of Airports Reporting
  • SOC :Service Operations Center
  • SOC :Service Oversight Center
  • SOIR :Simultaneous Operations On Intersecting Runways
  • SOIWR :Simultaneous Operations on Intersecting Wet Runways
  • SOP :Standard Operating Practice
  • SOP :Standard Operating Procedures
  • SOW :Statement of Work
  • SP :Surveillance Processing
  • SPAS :System Performance Analysis System
  • SPIFR :Single Pilot IFR
  • SRAP :Sensor Receiver and Processor
  • SRM :Safety Risk Management
  • SRM :Single Pilot Resource Management
  • SRMD :Safety Risk Management Document
  • SRMDM :Safety Risk Management Memo
  • SRS :Shuttle Reservation System
  • SRTM :Shuttle Radar Topography Mission
  • SSALF :SSALS with Sequenced Flashers
  • SSALR :Simplified Short Approach Lighting System
  • SSB :Single Side Band
  • SSC :System Support Center
  • SSC :Systems Support Center
  • SSD :System Support Directive
  • SSE :Servicing Security Element
  • SSM :System Support Modification
  • SSRWG :Systems Safety Risk Working Group
  • SST :System Shakedown Testing
  • ST&E :Security Test and Evaluation
  • STAMP :Site Transition Activation Management Plan
  • STAR :Standard Terminal Arrival Route
  • STAR :Standard Terminal Arrivals
  • STARS :Standard Terminal Automation Replacement System
  • STC :Supplemental Type Certificate
  • STD :Standard
  • STMP :Special Traffic Management Program
  • STMUX :Statistical Data Multiplexer
  • STOL :Short Take - Off and Landing
  • STOL :Short Takeoff and Landing
  • STR :System Technical Release
  • STT :Staffing to Traffic
  • STVS :Small Tower Voice Switch
  • SUA :Special Use Airspace
  • SUP :Suspected Unapproved Parts
  • SUPCOM :Supervisors Committee (AAT AND AAF)
  • SUPPS :Supplementary Procedures
  • SURPIC :Surface Picture
  • SVCA :Service A
  • SVCB :Service B
  • SVCC :Service C
  • SVCO :Service O
  • SVFB :Interphone Service F (B)
  • SVFC :Interphone Service F (C)
  • SVFD :Interphone Service F (D)
  • SVFO :Interphone Service F (A)
  • SVFR :Special Visual Flight Rules
  • SWAP :Severe Weather Avoidance Procedure/Program
  • SWIFT :Selections Within Faster Times
  • SWIM :System Wide Information Management
  • SWPPP :Storm Water Pollution Protection Plan

T

  • T1MUX :T1 Multiplexer
  • TAAS :Terminal Advance Automation System
  • TAC :Tactical Air Command (USAF) Tester
  • TAC :Terminal Area Chart
  • TACAN :Tactical Air Navigation
  • TACAN :Tactical Aircraft Control and Navigation
  • TACR :TACAN at VOR, TACAN only
  • TAF :Terminal Area Forecast
  • TAMR :Terminal Automation Modernization and Replacement
  • TARS :Terminal Automated Radar Service
  • TAS :True Air Speed
  • TATCA :Terminal Air Traffic Control Automation
  • TAVT :Terminal Airspace Visualization Tool
  • TAWS :Terrain Awareness and Warning System
  • TBFM :Time Based Flow Management
  • TBO :Trajectory Based Operation
  • TCA :Tactical Customer Advocate
  • TCA :Terminal Control Area
  • TCA :Traffic Control Airport or Tower Control Airport
  • TCACCIS :Transportation Coordinator Automated Command and Control Information System
  • TCAP :Traffic Count Automation Program
  • TCAS :Traffic Alert and Collision Avoidance System
  • TCC :DOT Transportation Computer Center
  • TCCC :Tower Control Computer Complex
  • TCE :Tone Control Equipment
  • TCLT :Tentative Calculated Landing Time
  • TCO :Telecommunications Certification Officer
  • TCOM :Terminal Communications
  • TCS :Tower Communications System
  • TCVR :Transceiver
  • TDDS :Terminal Data Display System
  • TDLS :Tower Data-Link Services
  • TDMUX :Time Division Data Multiplexer
  • TDWR :Terminal Doppler Weather Radar
  • TELCO :Telephone Company
  • TELMS :Telecommunications Management System
  • TERP :Terminal Instrument Procedure
  • TFAC :To Facility
  • TFDM :Tower Flight Data Manager
  • TFM :Traffic Flow Management
  • TFMS :Traffic Flow Management System
  • TFR :Temporary Flight Restriction
  • TH :Threshold
  • TIB :Technical Instruction Book
  • TIMS :Telecommunications Information Management System
  • TIPH :Taxi Into Position and Hold
  • TIPS :Terminal Information Processing System
  • TL :Taxilane
  • TM&O :Telecommunications Management and Operations
  • TMA :Traffic Management Advisor
  • TMC :Traffic Management Coordinator
  • TMC :Travel Management Center
  • TMC/MC :Traffic Management Coordinator/Military Coordinator
  • TMCC :Terminal Information Processing System
  • TMCC :Traffic Management Computer Complex
  • TMF :Traffic Management Facility
  • TMI :Traffic Management Initiative
  • TML :Television Microwave Link
  • TMLI :Television Microwave Link Indicator
  • TMLR :Television Microwave Link Repeater
  • TMLT :Television Microwave Link Terminal
  • TMP :Traffic Management Processor
  • TMS :Traffic Management System
  • TMSPS :Traffic Management Specialists
  • TMU :Traffic Management Unit
  • TNAV :Terminal Navigational Aids
  • TOCC :Technical Operations Control Center
  • TODA :Takeoff Distance Available
  • TOF :Time Of Flight
  • TOFMS :Time of Flight Mass Spectrometer
  • TOPS :Telecommunications Ordering and Pricing System (GSA software tool)
  • TORA :Take-off Run Available
  • TP :Telecommunication Processor
  • TP :Track Processing
  • TPP :Terminal Procedures Publication
  • TPR :Technical Performance Record
  • TR :Telecommunications Request
  • TRACAB :Terminal Radar Approach Control in Tower Cab
  • TRACON :Terminal Radar Approach Control
  • TRACON :Terminal Radar Approach Control Facility
  • TRAD :Terminal Radar Service
  • TRB :Transportation Research Board
  • TRD :Technical Reference Data
  • TRDR :Technical Reference Data Record
  • TRNG :Training
  • TS :Top Secret
  • TSA :Taxiway Safety Area
  • TSARTS :Terminal Stand-Alone Radar Training System
  • TSARTS :Terminal Stand-Alone Radar Training System
  • TSC :Technical Support Center
  • TSD :Traffic Situation Display
  • TSD :Traffic Situational Display
  • TSEC :Terminal Secondary Radar Service
  • TSO :Technical Standard Order
  • TSP :Telecommunications Service Priority
  • TSR :Telecommunications Service Request
  • TSS :Tower Simulation System
  • TSSC :Technical Support Services Contract
  • TSYS :Terminal Equipment Systems
  • TTMA :TRACON Traffic Management Advisor
  • TTWG :Technical Transfer Working Group
  • TTY :Teletype
  • TUR :Time Utilization Report
  • TVOR :Terminal VHF Omnidirectional Range
  • TVSR :Terminal Voice Switch Replacement
  • TW :Taxiway
  • TWEB :Transcribed Weather Broadcast
  • TWIP :Terminal Weather Information for Pilots
  • TWR :Tower (non-controlled)
  • TWY :Taxiway
  • TX :Transmitter
  • TY :Type (FAACIS)

U

  • UAS :Uniform Accounting System
  • UAS :Unmanned Aircraft Systems
  • UAT :Universal Access Transceiver
  • UBA :User Benefits Applications
  • UBI :User Benefits Infrastructure
  • UCR :Unsatisfactory Condition Report
  • UFAS :Uniform Federal Accessibility Standard
  • UHF :Ultra High Frequency
  • UNIX :Uniplexed Information and Computing System
  • UPR :User Preferred Route
  • UPS :Uninterruptable Power Supply
  • UPT :User Preferred Trajectory
  • URA :Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970
  • URET :User Request Evaluation Tool
  • USAF :United States Air Force
  • USC :United States Code
  • USCG :United States Coast Guard
  • USG :United States Government
  • USNS :United States Notices to Airmen System
  • USOAP :Universal Safety Oversight Audit Program
  • USOC :Uniform Service Order Code
  • UTC :Coordinated Universal Time (ZULU)

V

  • VALE :Voluntary Airport Low Emission
  • VALE :Voluntary Airport Low Emission Program
  • VASI :Visual Approach Slope Indicator
  • VBScript :Visual Basic Scripting Edition
  • VDF :Very High Frequency Direction-Finding Station
  • VDL :Very High Frequency Data Link
  • VDME :VOR with Distance Measuring Equipment
  • VEARS :VSCS Emergency Access Radio System
  • VF :Voice Frequency
  • VFR :Visual Flight Rules
  • VGSI :Visual Guidance Slope Indicator
  • VHF :Very High Frequency
  • VLF :Very Low Frequency
  • VLJ :Very Light Jet
  • VMC :Visual Meteorological Conditions
  • VMS :Virtual Memory System
  • VNAV :Visual Navigational Aids
  • VNTSC :Volpe National Transportation System Center
  • VOIP :Voice Over Internet Protocol
  • VON :Virtual On-net
  • VOR :Very High Frequency Omnidirectional Range
  • VOR/DME :Very High Frequency Omnidirectional Range Collocated with Distance Measuring Equipment
  • VOR/DME :VHF Omnidirectional Range/Distance Measuring Equipment
  • VORTAC :Very High Frequency Omnidirectional Range Collocated Tactical Air
  • VORTAC :VOR collocated with TACAN
  • VOT :VOR Test Facility
  • V/PD :Vehicle/Pedestrian Deviation
  • VRRP :Voice Recorder Replacement Program
  • VRS :Voice Recording System
  • VSBP :Voice Switch Bypass
  • VSCS :Voice Switching and Control System
  • VTA :Vertex Time of Arrival
  • VTAC :VOR collocated with TACAN
  • VTOL :Vertical Take-off and landing
  • VTS :Voice Telecommunications System

W

  • WAAS :Wide Area Augmentation System
  • WADGPS :Wide Area Differential Global Positioning System
  • WAN :Wide Area Network
  • WARP :Weather and Radar Processor
  • WASS :Wide Area Augmentation System - GPS
  • WBS :Work Breakdown Structure
  • WC :Work Center
  • WCAM :Weather Camera
  • WCIS :Workmen's Compensation Information System
  • WCP :Weather Communications Processor
  • WECO :Western Electric Company
  • WESCOM :Western Electric Satellite Communications
  • WFD :Widespread Fatigue Damage
  • WG :Working Group
  • WiFi :Wireless Fidelity
  • WJHTC :William J. Hughes Technical Center
  • WMS :Web Map Service
  • WMS :Wide-area Master Station
  • WMSC :Weather Message Switching Center
  • WMSCR :Weather Message Switching Center Replacement
  • WOCC :Washington Operations Center Complex
  • WRS :Wide Area Augmentation System Reference Station
  • WRS :Wide-area Reference Station
  • WSA :Western Service Area
  • WSC :Western Service Center
  • WSCMO :Weather Service Contract Meteorological Observatory
  • WSFO :Weather Service Forecast Office
  • WSO :Weather Service Office
  • WSP :Weather Systems Processor
  • WSR :Weather Surveillance Radar
  • WSUS :Windows Server Update Service
  • WTHR :Weather
  • WX :Weather

X

  • XML :eXtensible Markup Language

Z

  • ZAB :Albuquerque ARTCC
  • ZAN :Anchorage ARTCC
  • ZAU :Chicago ARTCC
  • ZBW :Boston ARTCC
  • ZDC :Washington ARTCC
  • ZDV :Denver ARTCC
  • ZFW :Fort Worth ARTCC
  • ZHU :Houston ARTCC
  • ZID :Indianapolis ARTCC
  • ZJX :Jacksonville ARTCC
  • ZKC :Kansas City ARTCC
  • ZLA :Los Angeles ARTCC
  • ZLC :Salt Lake City ARTCC
  • ZMA :Miami ARTCC
  • ZME :Memphis ARTCC
  • ZMP :Minneapolis ARTCC
  • ZNY :New York ARTCC
  • ZOA :Oakland ARTCC
  • ZOB :Cleveland ARTCC
  • ZSE :Seattle ARTCC
  • ZTL :Atlanta ARTCC