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
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