U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
Air Traffic Organization Policy

ORDER
JO 7340.2E
Effective Date:
July 24, 2014
 
     

Subject:  Contractions

[Back to Section 1. Decode]

C

Contraction

Definition

Usage

C

celsius

GEN

C

Central Standard Time (time groups only)

NWS

C

centre (runway ID)

ICAO

C

circling (approach and landing charts)

ATC

C

continental (air mass)

NWS

C/A

Coarse/Acquisition

ATC

CA

clear above (PIREP only)

ATC

CAAS

Class A Airspace

ATC

CAC

change to approach control or changing to approach control

ATC

CAC

contact approach control

ATC

CACT

civil air carrier turbojet

GEN

CADO

Chief, Airport District Office

GEN

CAM

Canadian Armed Forces Transport Command

GEN

CAN

Canada

NWS

CANFORCE

Canadian Armed Force

GEN

CANO

catalogue number

GEN

CANOT

Canadian NOTAM

GEN

CANR

Canadian NORAD Region

GEN

CAO

change of appointing office

GEN

CAP

Civil Air Patrol

GEN

CAP/IS

combined approach control/international station

GEN

CAPD

climb at pilotís discretion

ATC

CAPT

captain

GEN

CARA

check area airports

GEN

CARF

central altitude reservation function

GEN

CARIB

Caribbean

NWS

CARU

Canadian Airspace Reservation Unit

GEN

CAS

calibrated airspeed

ATC

CAS

collision avoidance system

GEN

CASCDS

cascades

NWS

CAT

category

ICAO

CAT

clear air turbulence

GEN

CATX

climb and cross

ATC

CAUFN

caution advised until further notice

GEN

CAVOK

cloud and visibility OK

NWS

CAVU

clear or scattered clouds and visibility greater than ten miles

NWS

CAWS

common aviation weather subsystem

NWS

CB

cumulonimbus

NWS

CBAS

Class B airspace

ATC

CBMAM

cumulonimbus mamma

NWS

CBSA

Class B surface area

ATC

CC

carbon copy

GEN

CC

cirrocumulus

NWS

CCA

continental control area

GEN

CCAS

Class C airspace

ATC

CCC

Central Computer Complex

GEN

CCC

Regional Communications Control Center

GEN

CCD

City (or County) Civil Defense Director at____

GEN

CCFP

collaborative convective forecast product

ATC

CCLDS

clear of clouds

ATC

CCLKOB

counterclockwise orbit

ATC

CCLKWS

counterclockwise

NWS

CCRU

complete crew

GEN

CCRZ

climb and cruise

ATC

CCSA

Class C surface area

ATC

CCSL

standing lenticular cirrocumulus

NWS

CCTLR

chief controller

GEN

CCUS

cleared Customs

GEN

CD

candela

ICAO

CD

civil defense

GEN

CD

clearance delivery

GEN

CDAS

Class D airspace

ATC

CDC

computer display channel

GEN

CDFNT

cold front

NWS

CDM

collaborative decision making

ATC

CDN

coordination

ICAO

CDO

communications duty officer

GEN

CDSA

Class D surface area

ATC

CE

communications equipment

GEN

CEAS

Class E airspace

ATC

CELNAV

celestial navigation

GEN

CENGR

civil engineer

GEN

CENPAC

Central North Pacific

ATC

CER

climb en route

ATC

CERAP

combined center/RAPCON

GEN

CERT

certificate

GEN

CERTIF

certification

GEN

CESA

Class E surface area

ATC

CF

change frequency to

ICAO

CFA

controlled firing area

ATC

CFAD

composite flight data processing

GEN

CFADC

Canadian Forces Air Defense Command

GEN

CFAP

cleared for approach

ATC

CFM

confirm

GEN

CFM

Confirm or I confirm

ICAO

CFN

confine

GEN

CFP

cold front passage

NWS

CFPL

carryover from previous log

ATC

CFR

Code of Federal Regulations

GEN

CFWSU

central flow weather service unit

GEN

CFY

clarify

GEN

CG

Coast Guard

GEN

CGAS

Class G airspace

ATC

CGAS

Coast Guard Air Station

GEN

CGL

circling guidance light

ICAO

CGLS

Coast Guard LORAN Station

GEN

CGSTN

congestion

GEN

CH

channel

ICAO

CH

This is a channel≠continuity≠check of transmission to permit comparison of your record of channel≠ sequence numbers of messages received on the channel

ICAO

CHAP

chapter

GEN

CHARC

characteristic

GEN

CHC

chance

NWS

CHG

change

GEN

CHGO

changing over

ATC

CHM

chemicals

GEN

CHNL

channel

GEN

CHOK

check okay

GEN

CHOV

changeover

ATC

CHRG

charge

GEN

CHSPK

Chesapeake

NWS

CHTR

charter

GEN

CI

cirrus

NWS

CIC

controller in charge

GEN

CIDIN

common ICAO data interchange network

ICAO

CIFP

cancel IFR flight plan

ATC

CIFR

cancel IFR clearance previously given

ATC

CIFRR

Common IFR Room

GEN

CIG

ceiling

NWS

CINCNORAD

Commander in Chief, North American Aerospace Defense Command

GEN

CIRNAV

circumnavigate

ATC

CIRNOT

circuit notice

GEN

CIRVIS

communications instructions for reporting vital intelligence sightings

ATC

CIT

near or over large towns

ICAO

CIV

civil

ICAO

CK

check

ICAO

CKT

circuit

GEN

CL

centre line

ICAO

CL

closing station

GEN

CL

course line

ATC

CLA

clear type of ice formation

ICAO

CLB

climb

ATC

CLBI

climb immediately

ATC

CLBN

crash locator beacon

GEN

CLBR

calibration

ICAO

CLD

cloud

NWS

CLG

calling

ICAO

CLKOB

clockwise orbit

ATC

CLKWS

clockwise

GEN

CLN

colon

GEN

CLNC

clearance

GEN

CLODA

closing date

GEN

CLOTO

close this office

GEN

CLR

clear

NWS

CLRAP

cleared as planned

ATC

CLRS

clear and smooth

NWS

CLSD

closed

ICAO

CLST

celestial

ATC

CLU

circuit line up

GEN

CM

centimeter

ICAO

CMA

comma

GEN

CMB

climb to or climbing to

ICAO

CMNC

commence

GEN

CMPCT

compact

GEN

CMPL

complete or completed or completion

ICAO

CMPLT

complete

GEN

CMPLX

complex

GEN

CMPSN

composition

GEN

CMPT

component

GEN

CMS

construction maintenance supervisor

GEN

CMSN

commission

GEN

CNCL

cancel

NWS

CNCNT

concurrently

GEN

CNCT

connect

GEN

CNDN

Canadian

NWS

CNL

cancel

GEN

CNLFP

cancel flight plan

ATC

CNS

communications, navigation and surveillance

ICAO

CNS

Consolidated NOTAM System

ATC

CNSTNT

consistent

GEN

CNTR

center

GEN

CNTRL

central

GEN

CNTRLN

centerline

GEN

CNVG

converge

GEN

CNVRT

convert

GEN

CNVSN

conversion

GEN

CNVTV

convective

NWS

CO

company

GEN

CO

county

GEN

COB

close of business

GEN

COC

climb on course

ATC

COLL

collect

GEN

COM

communication

ICAO

COMB

combine

GEN

COML

commercial

GEN

COMLO

compass locator

GEN

COMPR

compare

GEN

COMPRT

compartment

GEN

CONC

concrete

ICAO

CONCA

continue calling until

ATC

COND

condition

GEN

CONF

confidential

GEN

CONFDC

confidence

NWS

CONFIG

configuration

ATC

CONFIGN

configuration

GEN

CONR

Continental NORAD Region

GEN

CONS

continuous

ICAO

CONSO

CONSOLAN Facility

GEN

CONSOL

consol beacon

GEN

CONSOLAN

low or medium frequency long range navigational aid

GEN

CONST

construction

ICAO

CONT

continue(s) or continued

ICAO

CONTDVD

Continental Divide

NWS

CONTH

continue to hold

ATC

CONTR

contract

GEN

CONTRAILS

condensation trails

NWS

COORD

coordinate

GEN

COORD

Coordinates

ICAO

COP

changeover point

GEN

COPCOM

Controllersí Operations and Procedures Committee

GEN

COPT

completed procedure turn

ATC

COR

correct or corrected or correction

GEN

CORAS

corridor assignment

ATC

COREQ

confirming requisition follows

GEN

COT

at the coast

ICAO

COV

cover

ICAO

CP

circular polarization

GEN

CPA

crash phone activated

GEN

CPBL

capable

GEN

CPD

coupled

GEN

CPDLC

Controller≠pilot data link communications

ICAO

CPF

complete power failure

GEN

CPL

current flight plan

ICAO

CPME

Calibration performance monitoring equipment

GEN

CPN

air transport pulse radar navigation aid

GEN

CPS

air transport pulse radar search

GEN

CPTY

capacity

GEN

CRAD

composite radar data processing

GEN

CRAF

civil reserve air fleet

GEN

CRC

circle

GEN

CRC

Cyclic redundancy check

ICAO

CRCHF

crew chief

GEN

CRLC

circulate

GEN

CRS

course

GEN

CRT

cathode ray tube

GEN

CRTFY

certify

GEN

CRYPTO

cryptographic

GEN

CRZ

cruise

ICAO

CRZAM

cruise and maintain

ATC

CRZWTR

cruise well to right

ATC

CS

Call sign

ICAO

CS

cirrostratus

NWS

CS/C

combined station/center

GEN

CS/T

combined station/tower

GEN

CSATR

climb so as to reach

ATC

CSATX

climb so as to cross

ATC

CSDR

consider

GEN

CSDRBL

considerable

GEN

CSLDT

consolidate

GEN

CST

coast

NWS

CTA

control area

ICAO

CTAF

common traffic advisory frequency

ATC

CTAM

climb to and maintain

ATC

CTAS

controlled airspace

ATC

CTAX

climb to and cross

ATC

CTC

contact

GEN

CTCC

change to center control or changing to center control

ATC

CTCC

contact center control

ATC

CTCEN

contact center

ATC

CTGY

category

NWS

CTL

control

GEN

CTLA

control area

GEN

CTLB

control boundary

GEN

CTLR

controller

GEN

CTLZ

control zone

GEN

CTN

caution

GEN

CTR

control zone

ICAO

CTRAC

common terminal radar approach control

GEN

CTSKLS

Catskills

NWS

CU

cumulus

NWS

CUF

cumuliform

ICAO

CUFRA

cumulus fractus

NWS

CUSNO

customs has been notified

GEN

CUST

customs

ICAO

CVFP

cancel VFR flight plan

ATC

CVINO

clearance void if not off

ATC

CVN

convene

GEN

CVR

Cockpit voice recorder

ICAO

CVR

cover

GEN

CVRS

computerized voice reservation system

ATC

CW

continuous wave

ICAO

CWM

change weight manifest

GEN

CWRC

climb well to right of course

ATC

CWSU

central weather service unit

GEN

CWTR

climb well to right

ATC

CWY

clearway

ICAO

CXA

cancel approved arrival

ATC

CXD

cancel approved departure

ATC

CYC

cyclonic

NWS

CYCLGN

cyclogenesis

NWS

CYL

cylinder

GEN

CZM

coastal zone management

GEN

 

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