Abbreviation

Meaning

AAR

Airport arrival rate

ACD

ARTS Color Displays

ACDO

Air Carrier District Office

ACE-IDS

ASOS Controller Equipment-Information Display System

ACID

Aircraft identification

ADC

Aerospace Defense Command

ADIZ

Air defense identification zone

ADL

Aggregate demand list

ADR

Airport departure rate

ADS-A

Automatic Dependant Surveillance- Addressable

ADS-B

Automatic Dependent Surveillance- Broadcast

A/FD

Airport/Facility Directory

AFP

Airspace Flow Program

AFRES

Air Force reserve

AFTN

Aeronautical fixed telecommunications network

AIDC

ATS Interfacility Data Communications

AIM

Aeronautical Information Manual

AIRAC

Aeronautical Information Regulation and Control

AIT

Automated information transfer

ALD

Available landing distance

ALS

Approach light system

ALTRV

Altitude reservation

AMASS

Airport Movement Area Safety System

APREQ

Approval request

ARFF

Airport rescue and fire fighting

ARINC

Aeronautical Radio, Inc.

ARO

Airport Reservations Office

ARP

Airport reference point

ARSR

Air route surveillance radar

ART

ATO Resource Tool

ARTCC

Air route traffic control center

ARTS

Automated radar terminal system

ASDE

Airport surface detection equipment

ASDE-X

Airport Surface Detection Equipment System - Model X

ASF

Airport stream filters

ASI

Altimeter setting indicator

ASOS

Automated Surface Observing System

ASP

Arrival sequencing program

ASPM

Aviation System Performance Metrics

ASR

Airport surveillance radar

AT

Air Traffic

ATA

Air traffic assistant

ATC

Air traffic control

ATCAA

Air traffic control assigned airspace

ATCRBS

Air traffic control radar beacon system

ATCS

Air traffic control specialist

ATCSCC

David J. Hurley Air Traffic Control System Command Center

ATCT

Airport traffic control tower

ATIS

Automatic terminal information service

ATM

Air Traffic Manager

ATO

Air Traffic Organization

ATOP

Advanced Technologies and Oceanic Procedures

ATREP

Air Traffic representative

ATTS

Automated Terminal Tracking Systems

AWC

Aviation Weather Center

AWIS

Automated weather information service

AWOS

Automated Weather Observing System

BAASS

Bigelow Aerospace Advanced Space Studies

CA

Conflict alert

CAP

Civil Air Patrol

CARF

Central Altitude Reservation Function

CARTS

Common ARTS

CAS

Civil Aviation Security

CCFP

Collaborative Convective Forecast Product

CCSD

Collaborative Constraint Situation Display

CD

Clearance delivery

CDM

Collaborative decision making

CDR

Coded Departure Route(s)

CDR

Continuous Data Recording

CERAP

Combined center/RAPCON

CFR

Code of Federal Regulations

CIC

Controller-in-charge

CIRNOT

Circuit Notice

COB

Close of business

CONUS

Continental/Contiguous/Conterminous United States

COO

Chief Operating Officer

COTC

Computer operator terminal console

CPDLC

Controller Pilot Data Link Communications

CTRD

Certified Tower Radar Display

CTA

Controlled times of arrival

CWA

Center weather advisory

CWSU

ARTCC Weather Service Unit

DARC

Direct access radar channel

DAS

Delay assignment

DASI

Digital altimeter setting indicator

DCCWU

ATCSCC Weather Unit

DEDS

Data entry display system

DME

Distance measuring equipment

DOD

Department of Defense

DOE

Department of Energy

DOT

Department of Transportation

DP

Instrument Departure Procedure

DRT

Diversion Recovery Tool

DSP

Departure sequencing program

DTM

Digital terrain maps

DVA

Diverse vector area

DVRSN

Diversion

E-MSAW

En Route Minimum Safe Altitude Warning

EASL

Existing automation service level

EDCT

Expect departure clearance time

EFAS

En route flight advisory service

EI

Early Intent

ELT

Emergency locator transmitter

EOVM

Emergency obstruction video map

EPIC

El Paso Intelligence Center

ERIDS

En Route Information Display System

ESL

Emergency service level

ESP

En Route sequencing program

FAA

Federal Aviation Administration

FCA

Flow Constrained Area

FDEP

Flight data entry and printout

FDIO

Flight data input/output

FEA

Flow Evaluation Area

FIAO

Flight inspection area office

FLM

Front-Line Manager

FOIA

Freedom of information act

FOUO

For Official Use Only

FP

Flight plan

FPL

Full performance level

FRD

Fixed Radial Distance

FSA

Flight schedule analyzer

FSDO

Flight Standards district office

FSL

Full service level

FSM

Flight Schedule Monitor

FSS

Flight service station

FW

Flight watch

FWA

Flight watch area

FWCS

Flight watch control station

GA

General aviation

GC

Ground control

GDP

Ground delay program(s)

GENOT

General notice

GI

General information message

GS

Ground stop(s)

HIRL

High intensity runway lights

HRPM

Human Resource Policy Manual

IAFDOF

Inappropriate Altitude for Direction of Flight

ICAO

International Civil Aviation Organization

ICR

Integrated Collaborative Rerouting

ICSS

Integrated communication center

IDS

Information Display System

IFR

Instrument flight rules

IFSS

International flight service station

ILS

Instrument landing system

INS

Immigration and Naturalization Service

IR

IFR MTR

ITWS

Integrated Terminal Weather System

LAA

Local airport advisory

LAAS

Low altitude alert system

LADP

Local Airport Deicing Plan

LAHSO

Land and hold short operations

LAWRS

Limited aviation weather reporting station

LC

Local control

LLWAS

Low level wind shear alert system

LLWAS NE

Low Level Wind Shear Alert System Network Expansion

LLWAS-RS

Low Level Wind Shear Alert System Relocation/Sustainment

LLWS

Low Level Wind Shear

LOA

Letter of agreement

LOGT

Log/tally print time

MA

Monitor alert

MALS/RAIL

Medium approach light system and runway alignment indicator lights

MAPPS

Management Association for Private Photogrammetric Surveyors

MCI

Mode C intruder

MDM

Main display monitor

MEA

Minimum en route IFR altitude

MEARTS

Micro En Route Automated Radar Tracking System

METAR

Aviation Routine Weather Report

MIA

Minimum IFR altitude

MIAWS

Medium Intensity Airport Weather System

MIT

Miles-in-trail

MLS

Microwave landing system

MOA

Military operations area

MOCA

Minimum obstruction clearance altitude

MOU

Memorandum of understanding

MSL

Mean sea level

MTI

Moving target indicator

MTR

Military training route

MVA

Minimum vectoring altitude

NAA

National aeronautical association

NADIN

National airspace data interchange network

NAR

National Automation Request

NAS

National Airspace System

NASA

National Aeronautics and Space Administration

NASE

National Airway Systems Engineering

NAVAID

Navigational aid

NCIC

National crime information center

NFDC

National Flight Data Center

NFDD

National Flight Data Digest

NHOP

National hurricane operations plan

NM

Nautical mile

NNCC

National Network Control Center

NOAA

National Oceanic and Atmospheric Administration

NOM

National Operations Manager

NORAD

North American Aerospace Defense Command

NOS

National Ocean Service

NOTAM

Notice to Airmen

NRP

North American Route Program

NTML

National Traffic Management Log

NTMO

National Traffic Management Officer

NTSB

National Transportation Safety Board

NWS

National Weather Service

NWSOP

National winter storm operations plan

OASIS

Operational and Supportability Implementation System

OM

Operations Manager

OPR

Office of primary responsibility

OS

Operations Supervisor

OSIC

Operations Supervisor-in-Charge

P-ACP

Prearranged coordination procedures

PAR

Precision approach radar

PB

Pilot briefing

PCS

Power Conditioning System

PDC

Pre-Departure Clearance

PIC

Pilot-in-command

PIREPS

Pilot reports

POC

Point of Contact

PVD

Planned view display

QAR

Quality assurance review

RA

Radar Associate

RAA

Remote Airport Advisory

RADLO

Regional air defense liaison officer

RAIL

Runway alignment indicator lights

RAIS

Remote Airport Information Service

RAPCON

Radar approach control facility (USAF)

RATCF

Radar Air Traffic Control Facility associated with the United States Navy

RCAG

Remote communications air ground facility

RCC

Rescue coordination center

RMT

Route Management Tool

ROC

Regional operations center

ROG

Route Options Generation

ROT

Runway occupancy time

RSU

Runway supervisory unit

RVR

Runway visual range

RVV

Runway visibility value

SAA

Special activity airspace

SAMS

Special Use Airspace Management System

SATCOM

Satellite Communication(s)

SAWS

Stand Alone Weather System

SE

Systems engineer

SIA

Status information area

SID

Standard Instrument Departure

SIGMET

Significant meteorological information

SMGCS

Surface movement guidance and control system

SMO

System Management Office

SMR

Surface Movement Radar

SOP

Standard operating procedure

SP

Support Specialist(s)

SPECI

Nonroutine (Special) Aviation Weather Report

STARS

Standard terminal automation replacement system

STMC

Supervisor Traffic Management Coordinator

STMCIC

Supervisory Traffic Management Coordinator-in-Charge

STMP

Special traffic management program

SUA

Special use airspace

SVFR

Special visual flight rules

SWAP

Severe weather avoidance plan

T&A

Time and attendance

TAC

Terminal area chart

TACAN

Tactical air navigation aid

TCA

Tactical Customer Advocate

TCAS

Traffic alert collision and avoidance system

TCDD

Tower cab digital display

TDLS

Terminal Data Link System

TDW

Terminal display workstation

TDWR

Terminal Doppler weather radar

TEC

Tower en route control

TELCON

Telephone Conference

TEL-TWEB

Telephone-transcribed weather broadcast

TERPS

Terminal instrument procedures

TFMS

Traffic Flow Management System

TFR

Temporary flight restriction

TIBS

Terminal information broadcast system

TM

Traffic management

TMC

Traffic management coordinator

TMI

Traffic management initiatives

TMU

Traffic management unit

TRACAB

Terminal radar approach control in tower cab

TRACON

Terminal radar approach control

TRSA

Terminal Radar Service Area

TSD

Traffic situation display

TWEB

Transcribed weather broadcast

UFO

Unidentified flying object

UHF

Ultrahigh frequency

UPT

User Preferred Trajectory

URET

User Request Evaluation Tool

USAF

United States Air Force

USN

United States Navy

UTC

Coordinated universal time

VAR

Volcanic activity report

VASI

Visual approach slope indicator

VCE

VSCS/Console Equipment

VEARS

VSCS Emergency Access Radio System

VFR

Visual flight rules

VHF

Very high frequency

VMC

Visual meteorological conditions

VOR

Omnidirectional VHF navigational aid

VORTAC

Collocated VOR and TACAN navigational aid

VR

VFR MTR

VSCS

Voice Switching and Control System

VTABS

Voice switching and control system training and backup system

WARP

Weather and Radar Processing

WC

Weather coordinator

WFO

Weather Forecast Office

WINGS

Weather Information and Navigational Graphics System

WMSCR

Weather Message Switching Center Replacement

WSD

Web Situation Display

WSO

Weather Service Office

WSP

Weather System Processor