| ACARS |
Aircraft Communications Addressing and Reporting System |
| ACAS |
Airborne Collision Avoidance System |
| ACC |
Area Control Centre |
| ACI |
Airport Council International |
| ADEXP |
ATS Data Exchange Presentation |
| ADS |
Automatic Dependent Surveillance |
| ADS - B |
Automatic Dependent Surveillance - Broadcast |
| ADS-C |
Automatic Dependent Surveillance - Contract |
| AFG |
Audit and Financial Group |
| AFTN |
Aeronautical Fixed Telecommunication Network |
| AIS |
Aeronautical Information Service |
| AMHS |
Automated Message Handling System |
| ANS |
Air Navigation Services |
| ANSP |
Air Navigation Services Provider |
| AOC |
Aircraft Owners Certificate |
| AOR-E |
Atlantic Ocean Region East |
| APP |
Approach Control |
| ARINC |
Aeronautical Radio Incorporate |
| ARN |
ATS Route Network |
| ARTAS |
ATM SuRveillance Tracker and Server |
| ASM |
Airspace Management |
| ASMGCS |
Advanced Surface Movement Guidance and Control System |
| ATC |
Air Traffic Control |
| ATCC |
Air Traffic Control Centre |
| ATCO |
Air Traffic Control Officer |
| ATFM |
Air Traffic Flow Management |
| ATM |
Air Traffic Management |
| ATMC |
Air Traffic Management Centre |
| ATN |
Aeronautical Telecommunication Network |
| ATS |
Air Traffic Services |
| ATSU |
Air Traffic Services Unit |
| B-RNAV |
Basic Area Navigation |
| CAIRDE |
Civil Aviation Integrated Radar Display Equipment |
| CANSO |
Civil Air Navigation Services Organisation |
| CNS |
Communications, Navigation and Surveillance |
| CPDLC |
Controller Pilot Data Link Communications |
| CSU |
Chargeable Service Unit |
| DME |
Distance Measuring Equipment |
| DMEAN |
Dynamic Management of the European ATM Network |
| DVOR |
Doppler VHF Omni-directional Radio Range |
| EASA |
European Aviation Safety Agency |
| EATCHIP |
European Air Traffic Control Harmonisation Programme |
| EATM |
European Air Traffic Management |
| ECAC |
European Civil Aviation Conference |
| ECIP |
Eurocontrol Convergence & Implementation Programme |
| EFDPS |
European Flight Data Processing |
| EGNOS |
European Geostationary Navigation Overlay System |
| ESARR |
European Safety Regulatory Requirements |
| ETF |
European Transport Federation |
| FAA |
Federal Aviation Administration |
| FAB |
Functional Airspace Block |
| FACTS |
Future Area Control Tools Supp |
| FANS |
Future Air Navigation Systems |
| FDO |
Flight Data Operator |
| FDP |
Flight Data Processing |
| FDPS |
Flight Data Processing System |
| FIR |
Flight Information Region |
| FL |
Flight Level |
| FUA |
Flexible Use of Airspace |
| GAT |
General Air Traffic |
| GNSS |
Global Navigation Satellite Systems |
| GPS |
Global Positioning System |
| HF |
High Frequency (radio communication) |
| HMI |
Human Machine Interface |
| IAA |
Irish Aviation Authority |
| IALPA |
Irish Airline Pilots' Association |
| IATA |
International Air Transport Association |
| ICAO |
International Civil Aviation Organisation |
| ILS |
Instrument Landing System |
| INS |
Inertial Navigation System |
| JAA |
Joint Aviation Authorities |
| KPAs |
Key Performance Areas |
| LAN |
Local Area Network |
| MATSE |
Meeting [of ECAC Transport Ministers ] on the Air Traffic System in Europe |
| MRTS |
Multi Radar Tracking System |
| MSSR |
Monopulse Secondary Surveillance Radar |
| NAT SPG |
North Atlantic Systems Planning Group |
| NATS |
National Air Traffic Services |
| NDB |
Non-Directional Beacon |
| NOTA |
Northern Oceanic Transition Area |
| NSA |
National Supervisory Authority |
| OAT |
Operational Air Traffic |
| OCA |
Oceanic Control Area |
| ODS |
Operational Display System |
| OLDI |
On Line Data Interchange |
| PHARE |
Programme for Harmonisation of ATC Research in Europe |
| PS |
Primary Surveillance Radar |
| RDPS |
Radar Data Processing System |
| RNAV |
Area Navigation |
| RVSM |
Reduced Vertical Separation Minima |
| SARPs |
Standards and Recommended Practices |
| SATCOM |
Satellite Communications |
| SES |
Single European Sky |
| SID |
Standard Instrument Departure |
| SLOP |
Strategic Lateral Offset Procedures |
| SMR |
Surface Movement Radar |
| SMS |
Safety Management System |
| SOTA |
Shannon Oceanic Transition Area |
| SSR |
Secondary Surveillance Radar |
| STAR |
Standard Arrival Route |
| TACT |
Tactical Flow Management Working Group |
| TMA |
Terminal Control Area |
| UAC |
Upper Area Control Centre |
| UIR |
Upper Information Region |
| UPS |
Uninterruptible Power Supply |
| VDL |
Very High Frequency Data Link |
| VHF |
Very High Frequency |
| VoIP |
Voice over Internet Protocols |
| VOR |
VHF Omni-directional Radio Range |
| WGS |
World Geodetic System |
