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

ORDER
JO 7340.2D
Effective Date:
May 2, 2013
 
     

Subject:  Contractions
       Includes: Change 1 effective 8/22/13 and Change 2 effective 12/12/13    
 

[Back to Section 2. Encode]

C

Definition

Contraction

Usage

calibration

CLBR

ICAO 

calibration performance monitoring equipment

CPME

ATC

Call sign

CS

ICAO

Calling

CLG

ICAO

Canada

CAN

NWS

Canadian

CNDN

NWS

Canadian Airspace Reservation Unit

CARU

GEN

Canadian Armed Force

CANFORCE

GEN

Canadian Armed Forces Transport Command

CAM

GEN

Canadian Forces Air Defense Command

CFADC

GEN

Canadian NORAD Region

CANR

GEN

Canadian NOTAM

CANOT

GEN

cancel

CNCL

NWS

cancel

CNL

GEN

cancel approved arrival

CXA

ATC

cancel approved departure

CXD

ATC

cancel flight plan

CNLFP

ATC

cancel IFR clearance previously given

CIFR

ATC

cancel IFR flight plan

CIFP

ATC

cancel VFR flight plan

CVFP

ATC

candela

CD

ICAO

capable

CPBL

GEN

capacity

CPTY

GEN

captain

CAPT

GEN

carbon copy

CC

GEN

Caribbean

CARIB

NWS

carryover from previous log

CFPL

ATC

cascades

CASCDS

NWS

catalogue number

CANO

GEN

category

CAT

ICAO

category

CTGY

NWS

cathode ray tube

CRT

GEN

Catskills

CTSKLS

NWS

caution

CTN

GEN

caution advised until further notice

CAUFN

GEN

ceiling

CIG

NWS

celestial

CLST

ATC

celestial navigation

CELNAV

GEN

celsius

C

GEN

center

CNTR

GEN

center clearance delivered

B

ATC

centerline

CNTRLN

GEN

centimeter

CM

ICAO

central

CNTRL

GEN

central altitude reservation function

CARF

GEN

Central Computer Complex

CCC

GEN

central flow weather service unit

CFWSU

GEN

Central North Pacific

CENPAC

ATC

Central Region, FAA

ACE

GEN

Central Standard Time (time groups only)

C

NWS

central weather service unit

CWSU

GEN

centre (runway ID)

C

ICAO

centre line

CL

ICAO

certificate

CERT

GEN

certification

CERTIF

GEN

certify

CRTFY

GEN

chance

CHC

NWS

change

CHG

GEN

change frequency to

CF

ICAO

change of appointing office

CAO

GEN

change to approach control or changing to approach control

CAC

ATC

change to center control or changing to center control

CTCC

ATC

change weight manifest

CWM

GEN

changeover

CHOV

ATC

changeover point

COP

GEN

changing over

CHGO

ATC

channel

CH

ICAO

channel

CHNL

GEN

chapter

CHAP

GEN

characteristic

CHARC

GEN

charge

CHRG

GEN

charter

CHTR

GEN

check

CK

ICAO

check area airports

CARA

GEN

check okay

CHOK

GEN

chemicals

CHM

GEN

Chesapeake

CHSPK

NWS

chief controller

CCTLR

GEN

Chief, Airport District Office

CADO

GEN

circle

CRC

GEN

circling (approach and landing charts)

C

ATC

circling guidance light

CGL

ICAO

circuit

CKT

GEN

circuit line up

CLU

GEN

circuit notice

CIRNOT

GEN

circular polarization

CP

GEN

circulate

CRLC

GEN

circumnavigate

CIRNAV

ATC

cirrocumulus

CC

NWS

cirrostratus

CS

NWS

cirrus

CI

NWS

City (or County) Civil Defense Director at____

CCD

GEN

civil

CIV

ICAO

civil air carrier turbojet

CACT

GEN

Civil Air Patrol

CAP

GEN

civil defense

CD

GEN

civil engineer

CENGR

GEN

civil reserve air fleet

CRAF

GEN

clarify

CFY

GEN

Class A Airspace

CAAS

ATC

Class B airspace

CBAS

ATC

Class B surface area

CBSA

ATC

Class C airspace

CCAS

ATC

Class C surface area

CCSA

ATC

Class D airspace

CDAS

ATC

Class D surface area

CDSA

ATC

Class E airspace

CEAS

ATC

Class E surface area

CESA

ATC

Class G airspace

CGAS

ATC

clear

CLR

NWS

clear above (PIREP only)

CA

ATC

clear air turbulence

CAT

GEN

clear and smooth

CLRS

NWS

clear of clouds

CCLDS

ATC

clear or scattered clouds and visibility greater than ten miles

CAVU

NWS

clear or scattered clouds and visibility greater than ten, remainder of report missing (weather reports only)

DCAVU

NWS

clear type of ice formation

CLA

ICAO

clearance

CLNC

GEN

clearance delivery

CD

GEN

clearance void if not off

CVINO

ATC

cleared as planned

CLRAP

ATC

cleared Customs

CCUS

GEN

cleared for approach

CFAP

ATC

cleared to fix

F

ATC

clearway

CWY

ICAO

climb

CLB

ATC

climb and cross

CATX

ATC

climb and cruise

CCRZ

ATC

climb at pilot’s discretion

CAPD

ATC

climb en route

CER

ATC

climb immediately

CLBI

ATC

climb on course

COC

ATC

climb so as to cross

CSATX

ATC

climb so as to reach

CSATR

ATC

climb to and cross

CTAX

ATC

climb to and maintain

CTAM

ATC

climb to or climbing to

CMB

ICAO

climb well to right

CWTR

ATC

climb well to right of course

CWRC

ATC

clockwise

CLKWS

GEN

clockwise orbit

CLKOB

ATC

close of business

COB

GEN

close this office

CLOTO

GEN

closed

CLSD

ICAO 

closing date

CLODA

GEN

closing station

CL

GEN

cloud

CLD

NWS

cloud and visibility OK

CAVOK

NWS

cloud base

BASE

GEN

cloud top

TOP

NWS

Coarse/Acquisition

C/A

ATC

coast

CST

NWS

Coast Guard

CG

GEN

Coast Guard Air Station

CGAS

GEN

Coast Guard LORAN Station

CGLS

GEN

coastal zone management

CZM

GEN

Cockpit voice recorder

CVR

ICAO

Code of Federal Regulations

CFR

GEN

cold (air mass)

K

NWS

cold front

CDFNT

NWS

cold front passage

CFP

NWS

collaborative convective forecast product

CCFP

ATC

collaborative decision making

CDM

ATC

collect

COLL

GEN

collision avoidance system

CAS

GEN

colon

CLN

GEN

combine

COMB

GEN

combined approach control/international station

CAP/IS

GEN

combined center/RAPCON

CERAP

GEN

combined station/center

CS/C

GEN

combined station/tower

CS/T

GEN

comma

CMA

GEN

Commander in Chief, North American Aerospace Defense Command

CINCNORAD

GEN

commence

CMNC

GEN

commercial

COML

GEN

commercial broadcasting station

BS

ICAO

commission

CMSN

GEN

common aviation weather subsystem

CAWS

NWS

common ICAO data interchange network

CIDIN

ICAO

Common IFR Room

CIFRR

GEN

common terminal radar approach control

CTRAC

GEN

common traffic advisory frequency

CTAF

ATC

communication

COM

ICAO

communications duty officer

CDO

GEN

communications equipment

CE

GEN

communications instructions for reporting vital intelligence sightings

CIRVIS

ATC

communications, navigation and surveillance

CNS

ICAO

compact

CMPCT

GEN

company

CO

GEN

compare

COMPR

GEN

compartment

COMPRT

GEN

compass locator

COMLO

GEN

compass locator at ILS middle marker

LMM

GEN

compass locator at ILS outer marker

LOM

GEN

complete

CMPLT

GEN

complete crew

CCRU

GEN

complete or completed or completion

CMPL

ICAO

complete power failure

CPF

GEN

completed procedure turn

COPT

ATC

complex

CMPLX

GEN

component

CMPT

GEN

composite flight data processing

CFAD

GEN

composite radar data processing

CRAD

GEN

composition

CMPSN

GEN

computer display channel

CDC

GEN

computerized voice reservation system

CVRS

ATC

concrete

CONC

ICAO

concurrently

CNCNT

GEN

condensation trails

CONTRAILS

NWS

condition

COND

GEN

confidence

CONFDC

NWS

confidential

CONF

GEN

configuration

CONFIGN

GEN

configuration

CONFIG

ATC

confine

CFN

GEN

confirm

CFM

GEN

Confirm or I confirm

CFM

ICAO

confirming requisition follows

COREQ

GEN

congestion

CGSTN

GEN

connect

CNCT

GEN

consider

CSDR

GEN

considerable

CSDRBL

GEN

consistent

CNSTNT

GEN

consol beacon

CONSOL

GEN

CONSOLAN Facility

CONSO

GEN

consolidate

CSLDT

GEN

Consolidated NOTAM System

CNS

ATC

construction

CONST

ICAO

construction maintenance supervisor

CMS

GEN

contact

CTC

GEN

contact approach control

CAC

ATC

contact center

CTCEN

ATC

contact center control

CTCC

ATC

continental (air mass)

C

NWS

continental control area

CCA

GEN

Continental Divide

CONTDVD

NWS

Continental NORAD Region

CONR

GEN

continue calling until

CONCA

ATC

continue(s) or continued

CONT

ICAO

continue to hold

CONTH

ATC

continuous

CONS

ICAO

continuous 24­hour service

H24

ICAO

continuous wave

CW

ICAO

contract

CONTR

GEN

control

CTL

GEN

control area

CTA

ICAO

control area

CTLA

GEN

control boundary

CTLB

GEN

control zone

CTLZ

GEN

control zone

CTR

ICAO

controlled airspace

CTAS

ATC

controlled firing area

CFA

ATC

controller

CTLR

GEN

controller in charge

CIC

GEN

Controller­pilot data link communications

CPDLC

ICAO

Controllers’ Operations and Procedures Committee

COPCOM

GEN

convective

CNVTV

NWS

convene

CVN

GEN

converge

CNVG

GEN

conversion

CNVSN

GEN

convert

CNVRT

GEN

coordinate

COORD

GEN

Coordinated Universal Time

UTC

GEN

Coordinated Universal Time Coordinate Check Completed

UTCOK

GEN

Coordinates

COORD

ICAO

coordination

CDN

ICAO

correct or corrected or correction

COR

GEN

corridor assignment

CORAS

ATC

counterclockwise

CCLKWS

NWS

counterclockwise orbit

CCLKOB

ATC

county

CO

GEN

coupled

CPD

GEN

course

CRS

GEN

course line

CL

ATC

cover

COV

ICAO

cover

CVR

GEN

crash locator beacon

CLBN

GEN

crash phone activated

CPA

GEN

crew chief

CRCHF

GEN

cross

X

ICAO

cross talk

XTLK

ATC

crossbar

XBAR

ICAO

crossing

XNG

ICAO

crosswind

XW

ATC

cruise

CRZ

ICAO

cruise and maintain

CRZAM

ATC

cruise well to right

CRZWTR

ATC

Cryptographic

CRYPTO

GEN

Crystal

XTAL

GEN

Cumuliform

CUF

ICAO

Cumulonimbus

CB

NWS

cumulonimbus mamma

CBMAM

NWS

Cumulus

CU

NWS

cumulus fractus

CUFRA

NWS

current flight plan

CPL

ICAO

Customs

CUST

ICAO

customs has been notified

CUSNO

GEN

Cyclic redundancy check

CRC

ICAO

Cyclogenesis

CYCLGN

NWS

Cyclonic

CYC

NWS

Cylinder

CYL

GEN

 

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