| AAR |
Airport Arrival Rate |
| AATT |
Advanced Air Transportation Technologies |
| A/DMT |
Arrival/Departure Management Tool |
| AC |
Adaptive Compression |
| ACARS |
Aircraft Communications Addressing and Reporting System |
| ACC |
Area Control Center |
| ACU |
Area Control Unit |
| ADEPT |
Airspace Design Environmental Prototyping Tool |
| ADT |
Airspace Design Tool |
| AEDT |
Aviation Environmental Design Tool |
| ADR |
Airport Departure Rate |
| ADS |
Automatic Dependent Surveillance |
| ADS-B |
Automatic Dependent Surveillance-Broadcast |
| AF |
Airway Facilities |
| AFMI |
Area Flow Management Initiative |
| AFMU |
Area Flow Management Unit |
| AFP |
Airspace Flow Program |
| AFSM |
Airport Flight Schedule Monitor |
| AFTN |
Aeronautical Fixed Telecommunications Network |
| AIS |
Aeronautical Information Services |
| AMP |
Area Monitoring Position |
| ANSP |
Air Navigation Service Provider |
| AOC |
Airline Operations Center |
| AOR |
Airspace Optimization Research |
| APP |
Approach Control Unit |
| APREQ |
Approved Request |
| ASM |
Airspace Management |
| ATC |
Air Traffic Control |
| ATCA |
Air Traffic Control Association |
| ATCSCC |
Air Traffic Control System Command Center |
| ATCT |
Airport Traffic Control Tower |
| ATFM |
Air Traffic Flow Management |
| ATIM |
Airportal Transition and Integration Management |
| ATM |
Air Traffic Management |
| ATSP |
Air Traffic Service Provider |
| CADOM |
Coordinated Arrival and Departure Operations Management |
| CAMU |
Central Airspace Management Unit |
| CANSO |
Civil Air Navigation Services Organization |
| CBT |
Computer-Based Training |
| CCB |
Change Control Board |
| CD |
Concept Development |
| CDM |
Collaborative Decision Making |
| CDR |
Coded Departure Routes |
| CE |
Concept Exploration/Concept Engineering |
| CED |
Concept Engineering and Development |
| CO |
Carbon Monoxide |
| CTOT |
Calculated Takeoff Time |
| DAC |
Dynamic Airspace Configuration |
| DASC |
Digital Avionics Systems Conference |
| DFM |
Departure Flow Management |
| DNAP |
Departure Noise Avoidance Planner |
| DNL |
Day/night sound level |
| DST |
Decision Support Tool |
| ELLDT |
Earliest Airline Landing Time |
| ELTOT |
Earliest Airline Takeoff Time |
| ENTIRE |
Emissions and Noise Total Impact Reduction |
| EPACT |
Analysis for the Energy Policy Act |
| ESM |
Enhanced Substitution Module |
| ETL |
Extraction, Transformation and Loading |
| FAA |
Federal Aviation Administration |
| FACE |
Flow Constraint Areas Airpsace Capacity Estimator |
| FCA |
Flow Constrained Areas |
| FCT |
Future Concepts Team |
| FIR |
Flight Information Region |
| FSA |
Flight Schedule Analyzer |
| FSM |
Flight Schedule Monitor |
| GA |
General Aviation |
| GAAP |
General Aviation Airport Program |
| GDP |
Ground Delay Program |
| GOC |
Global Operations Control |
| GS |
Ground Stop |
| HC/VOC |
Hydrocarbons/Volatile Organic Compounds |
| HITL |
Human-In-The-Loop |
| IACM |
Integrated Airport Capacity Model |
| ICAO |
International Civil Aviation Organization |
| IDFL |
Interactive Dynamic Flight List |
| IEEE |
Institute of Electrical and Electronics Engineers |
| IFR |
Instrument Flight Rules |
| IRIS |
Integrated Reporting and Information System |
| ISE |
Integrated Simulation Environment |
| ISO |
International Organization for Standardization |
| JPDO |
Joint Planning and Development Office |
| MAP |
Monitor Alert Parameter |
| MEFISTO |
Modeling Environmental Factors in Surface Traffic Optimization |
| MEM |
Memphis International Airport |
| NAS |
National Airspace System |
| NASA |
National Space and Aeronautics Administration |
| NASEIM |
National Airspace System-wide Environmental Impact Model |
| NAVAID |
Navigational Aid |
| NEPA |
National Environmental Policy Act |
| NetFM |
Network Flow Model |
| NFDC |
National Flight Data Center |
| NIRS |
Noise Integrated Routing System |
| NOX |
Nitrogen Oxide |
| NST |
NIRS Screening Tool |
| OAG |
Official Airline Guide |
| OEP |
Operational Evolution Plan |
| OLTP |
Online Transaction Processing |
| OR |
Operations Research |
| PM |
Particulate Matter |
| POET |
Post Operations Evaluation Tool |
| PTO |
Paid Time Off |
| QA |
Quality Assurance |
| RMT |
Route Management Tool |
| ROG |
Route Options Generator |
| ROMA |
Route Optimization for Mitigation Analysis |
| SCS |
Slot Credit Substitution |
| SE-2020 |
Systems Engineering 2020 |
| SESO |
Safe and Efficient Surface Operations |
| SEVEN |
System Enhancements for Versatile Electronic Negotiation |
| SMS |
Surface Management System |
| SOT |
Airspace Sectorization Tool |
| SOX |
Sulfur Dioxide |
| STAR |
Standard Terminal Arrivals |
| SUA |
Special Use Airspace |
| TBFM |
Time Based Flow Management |
| TBO |
Trajectory-Based Operations |
| TFMS |
Traffic Flow Management System |
| TM |
Traffic Managers |
| TMI |
Traffic Management Initiatives |
| TOBT |
Target Off-Block Time |
| TOPA |
Traffic Flow Management Operations and Performance Analysis |
| TRACON |
Terminal Radar Approach Control |
| WJHTC |
William J. Hughes Technical Center |
| ZLA |
Los Angeles Center |
