Abbreviations

automatic direction finder

automatic dependent surveillance-broadcast

air defense identification zone

above ground level

airman information manuel

airmen's meterological information

alert notice

approach lighting systemufdsafdsa

altitude reservationdfafds

air route traffic control center

airport surveillance radar

air traffic control facility

air traffic control tower

automatic terminal information service

civil aeronautics administration

clear air turbulance

combined center-radar approach control

code of federal regulations

common traffic advisory frequency

center weather advisory

consolidated wake turbulance

decision height

distance measuring equipment

department of transportation

defense visual flight rules

emergency locator transmitter

estimated time of arrival

federal aviation administration

federal aviation regulation

flight data center

flight standards district office

flight service station

ground delay program

global positioning system

Ground stop

hazardous inflight weather advisory

instrument approach procedure

international civil aviation organization

instrument flight rules

instrument landing system

instrument meterological conditions

information request

instrument flight rules military training route

local time

low frequency

ILS localizer

minimum descent altitude

minimum en route altitude

meterological impact statement

megahertz

military operations area

minimum safe altitude warning

mean sea level

military training route

national airspace system

navigational aid

nondirectional beacon

notice to air missions

national route program

national transportation safety board

national weather service

precision approach path indicator

pilot weather report

runway alignment indicator light

radar approach control

radar air traffic controll facility

rescue coordination center

runway end identifier lights

area navigation

runway visual range

reduced vertical separation minima

sequenced flashing lights

significant meterological information

special use airspace

tactical air navigation

traffic alert and collision avoidance system

traffic management unit

terminial radar approach control

terminal radar service area

Ultra High Frequency

visual approach slope indicator

visual flight rules

visual meterological conditions

very high frequency omnidirectional radio range

visual flight rules military training route

wide area augumentation system

zulu time