| Acronyms | Meaning / Significance |
Source |
| C2 | command and control | |
| C2CS | command and control communication system | |
| C2G | command and control guard | |
| C2IS | command and control information system | |
| C2IS | command and control information system | |
| C2RA | C2 requirements analysis | |
| C2RM | command and control resource management | |
| C2RM | command and control resource management | |
| C3 | command, control and communication | outdated |
| C3 | consultation, command and control | AC/317-N/798 |
| C3CS | C3 communications sub-system | |
| C3I | command and control, communications and information | |
| C3MP | consultation, command and control master plan | |
| C3SWI | C3 sensors and warning installation | |
| C4I | command, control, communication, computers and intelligence | |
| CA | certification authority | |
| CAA | civil aviation authority | |
| CAB | contract award board | |
| CAD | computer-aided design | |
| CADC | corps AD centre | |
| CADIMS | coordinated air defense in mutual support | |
| CADRG | compressed ARC digitised raster graphics | ACE ACCIS core cap specs |
| CADS | concept and design study | |
| CAF | conceptual architectural framework | |
| CAI | computer assisted instruction | |
| CAI | cooperative aircraft identification | |
| CALS | computer aided aquisition and logistic support | |
| CALS | continous acquisition and life-cycle support | |
| CAM | computer-aided manufacturing | |
| CAMPS | computer aided message processing system | |
| CAMS | core automated maintenance system | |
| CAN | Conseil de l'Atlantique Nord | |
| CAOC | combined air operations centre | |
| CAOC | combined air operations command | Ex Strong Resolve 95 |
| CAP | combat air patrol | |
| CAP | conventional armaments plan | |
| CAPC | civil aviation planning committee | |
| CAPCO | Capability Package Co-ordinator | |
| CAPS | conventional armaments planning system | |
| CAR | communications assessment report | |
| CARS | CAOC, ACC, RPC, SFP colocated | |
| CAS | close air support | |
| CASA | computer assisted slot allocation | |
| CASCOM | US army combined arms support command (Ft. Lee) | |
| CASE | common application servive elements | |
| CASE | computer-aided software engineering | |
| CASE | Computer Assisted Software Engineering | |
| CASEVAC | casualty evacuation | |
| CASO | common application standards for OLDI | |
| CASP | coordinated air/sea procedures | |
| CAST | computed assisted supervision of transport media | |
| CAT | computer aided training | |
| CAT | crisis action team | |
| CATK | counter attack | |
| CATV | cable TV | |
| CAWG | civil aviation working group | |
| CAX | computer aided exercise | |
| CAX | computer assisted exercise | |
| CBC | civil budget committee | |
| CBC | cross border connection | |
| CBL | cross border link | |
| CBMS | computer based message system | |
| CBN | common backbone network | |
| CC | CAX centre | |
| CC | common criteria | |
| CC | control cell | |
| CC/CA | congestion control/congestion avoidance | STC CSNI final report 22/9/95 |
| CC3 | counter C3 | |
| CCA | conceptual communication area | |
| CCAP | CIS contingency assets pool | APD 04.05.03 (95)04 |
| CCB | configuration control board | |
| CCCS | command and control communication system | |
| CCDP | communications circiut distribution panel | |
| CCE | civil communications element | |
| CCEB | combined communication and electronics board | NACISA/APD/04.07.00(95)001 |
| CCEB | combined communications and electronics board | |
| CCEB | common criteria editorial board | |
| CCF | centralised computer facility | |
| CCF | COA/ACOA computer facility | |
| CCF | conceptual civil framework | |
| CCG | command and control group | |
| CCI | controlled cryptographic item | |
| CCIR | consultative committee on international radio | AC/317-N/798 |
| CCIRM | Collection Coordination and Intelligence Requirements Management | |
| CCIS | command and control information system | |
| CCIS | Command, Control and Information System | |
| CCITT | consultative committee on international telegraphy and telephony | See also ITU |
| CCLF | Command of combined land forces | |
| CCMC | communications control and management cell | |
| CCMS | committee on the challenge of medern society | |
| CCNA | Conseil de Cooperation Nord Atlantique | |
| CCO | configuration control office | |
| CCP | command and control project | |
| CCPC | civil communications planning committee | |
| CCR | commitment, concurrency and recovery | |
| CCU | crypto control unit | |
| CCWA | civil communications wartime agency | |
| CCWP | CIS co-operation work plan | AC/317-N/710 |
| CD | committee draft (ISO) | |
| CD ROM | Compact Disk - Read Only Memory | |
| CDA | computer design activity | |
| CDBS | central database system | |
| CDC | civil defence committee | |
| CDI | conventional defence improvement | |
| CDM | conceptual data model | |
| CDMA | code division multiple access | AC/317(WG/1)(SG/2)N/183 |
| CDNA | Comite des Directeurs Nationals de l'Armement | CNAD |
| CDTS | computer directional training system | |
| CE | control element | |
| CE&C | civil engineering and construction | |
| CEAC | committee for European airspace co-ordination | |
| CECC | civil emergency crisis cell | |
| CEIR | civil emergency information room | |
| CELP | code excited linear predictive | |
| CELT | crypto equipment for low speed telegraph | |
| CEN | European committee for standardisation | |
| CENELEC | European committee for for electronic standardisation | |
| CENTLANT | central sub-area Atlantic | |
| CEOI | communications electronic operating instruction | |
| CEP | Civil Emergency Planning | |
| CEP | Communication Equipment Programme | |
| CEPA | common European priority area | |
| CEPAS | Crypto Equipment for Packet Switching | |
| CEPC | Civil Emergency Planning Committee | |
| CEPMA | Central Europe Pipeline Management Agency | |
| CEPO | central Europe pipeline office | |
| CEPS | central Europe pipeline system | |
| CEPT | Conference Europeen des Administrations des Postes et Telecomm. | |
| CEROFF | crypto equipment rapid off-line | |
| CERRRS | central European recce results reporting system | |
| CF | Call Forwarding | |
| CF | change field | |
| CF | contingency forces | |
| CFB | call for bids | |
| CFB | central flight plan data bank | |
| CFE | conventional forces Europe | |
| CFL | cleared flight plan | |
| CFMU | central flow management unit | |
| CGI | common gateway interface | ACE ACCIS core cap specs |
| CGI | common guard interface | |
| CGM | computer graphics metafile | |
| CHESS | clear header encrytion support system | |
| CHLAHG | council high level ad hoc group | |
| CHOD | chief of defence | |
| CHOTS | corporate HQ office technology system | |
| CI | Counter Intelligence | |
| CI&Sy | Counter Intelligence and Security | |
| CIC | CAOC interface component | |
| CICC | College International des Commisaires aux Comptes | |
| CICMA | Comite Interdepartemental de Coordination en Matiere d'Armement | |
| CICR | Committee on Information Cultural Relation | |
| CIDIN | common ICAO data exchange network | |
| CIEG | common information exchange glossary | |
| CIG | current intelligence group | |
| CIM | corporate information management | |
| CIMIC | civil military cooperation | |
| CIOB | counter intelligence order of battle | |
| CIP | communications improvement plan | |
| CIP | communications improving plan | |
| CIPD | convergence and implementation programme document | |
| CIPS | civil international preference scheme | |
| CIPSO | commercial INTERNET | |
| CIR | crypto item register | |
| CIR | protocol security option | |
| CIS | CASE integration services | |
| CIS | common interface standard | |
| CIS | Commonwealth of independant states | |
| CIS | Communication and Information Systems | |
| CIS-ESG | COMSEC items register | |
| CISA | CIS exercise steering group | |
| CISC | complex instruction set computer | ACE ACCIS core cap specs |
| CISCC | Communication and Information Systems Co-ordinating Committee | |
| CISCLD | Communication and Information Systems Communication Logistics Depot | |
| CISD | Communication and Information Systems Division | |
| CISSISG | CIS Security Implementation Sub-Group | superseded by INFOSEC SC |
| CISTSG | CIS terminology Sub-Group | |
| CIT | combined interrogator-transponder | |
| CITIS | contractual integrated technical information services | |
| CITSEC | common information technology security evaluation criteria | |
| CITWG | combat identification technical work group | |
| CIU | cryptographic interface unit | |
| CIWG | combat identification work group | |
| CJTF | Combined Joint Task Force | Ex Strong Resolve 95 |
| CL | Connectionless | |
| CL | Control and Liaison | |
| CL-NS | Connectionless Mode Network Service | |
| CLD | Communications Logistic Depot | |
| CLF | control land forces | |
| CLID | Calling Line Identification | ISDN access restriction |
| CLIP | Calling Line Identification Presentation | |
| CLNP | Connectionless Network Protocol | |
| CLNS | connection-less oriented network service | |
| CLS | contractor logistic support | AC/4(WG29)DS/139 |
| CLSE | commander allied forces southeastern Europe | |
| CLTP and m | connectionless transport protocol plus multicast | STC CSNI final report 22/9/95 |
| CLTS | connectionless transport service | |
| CLV | combined likelihood vector | |
| CM | Comite Militaire | See MC |
| CM | Configuration Management | |
| CM | Crisis Management | |
| CMAE | configuration management administrative element | ADSIA mission |
| CMB | Configuration Management Board | |
| CMC | Chairman of the Military Committee | |
| CMF | Conceptual Military Framework | |
| CMG | Coordination Management Group | |
| CMIP | common management information protocol | |
| CMIS | common mamagement information services | |
| CMIS/P | common mamagement information services and protocol | |
| CMIWG | current maritime intelligence working group | |
| CMM | crisis management manual | AC/317-N7798 |
| CMMC | common maintenance monitoring and control | |
| CMNS | connection mode network service | |
| CMO | coverage mission order | |
| CMO | crisis management oranisation | CAX |
| CMP | configuration management plan | |
| CMPAS | Common Manpower Accounting System | |
| CMT | coordination management team | |
| CMT | crisis management team | |
| CMTP | common medium term plan | EUROCONTROL |
| CMW | compartment mode workstation | ACE ACCIS core cap specs |
| CMW | compartmented mode workstation | |
| CMW | compartmented mode workstation | |
| CNAD | conference of national armaments directors | |
| CNI | communications, navigation and identification | |
| CNIS | communication, navigation and identification systems | |
| CNIS | communications, navigation and identification systems | |
| CNIS | computer and network based information system | |
| CNR | Centre National de Renseignements | |
| CNR | combat net radio | |
| CO | connection-oriented | |
| COA | central operating authority | OCO |
| COB | collocated operating base | |
| COB | Counter Intelligence Order of Battle | |
| COBRA | counter battery radar | |
| COC | combined operations centre | |
| COE | common operating evironment | |
| COE | Courses of Events | |
| COEA | cost and operational effectiveness analysis | |
| COEC | council operations and exercises committee | |
| COFFA | certificate of final financial acceptance | |
| COG | current operations group | crisis time |
| COI | communications of interest | |
| COI | community of interest | |
| COIC | combat operation intelligence centre | |
| COLOC | change of location of command | |
| COLP | Connected Line Identification Presentation | |
| COMAIRCENT | commander air forces central Europe | |
| COMBALTAP | commander Baltic approaches | |
| COMCAOC | commander CAOC | |
| COMCEN | SHAPE communication center | STC TN-155 |
| COMIL | coordination centre for military airspace control | |
| COMINT | communication intelligence (COMINT+ELINT=SIGINT) | |
| COMNAV | communication and navigation aids | |
| COMPUSEC | computer security | |
| COMSEC | communications security | |
| CONMARCOMMS | CONcept of COMMunications in support of MARitime operations | MC 377 |
| CONOPS | CONcept of OPerationS | |
| CONS | connection-oriented network service | |
| CONUS | continental US | |
| COOF | continuity of operations facility | |
| COOP | continuity of operations facility | |
| COP | Common Operational Picture | |
| COP | Common Operational Picture | |
| COP | contingency operation plan | |
| COPE | commercial packet encryptor | |
| COPE | COTS packet security equipment | |
| COPS | common operational performance specification | |
| COPS/CWP | common op. performance spec. for controller working position | |
| CORA | common operational requirements area | |
| CORBA | Common Object Request Broker Architecture | CAX |
| CORTA | operational air traffic control cell | |
| COS | Chief of Staff | |
| COS | computer operator station | |
| COS | corporation for open systems | |
| COSA | coordinating and scheduling agency | |
| COSO | Concept of System Operation | |
| COSO | concept system operation | AC/317-N/819 |
| COTP | connection oriented transport protocol | STC CSNI final report 22/9/95 |
| COTS | Commercial-Off-The-Shelf | |
| COTS | connection-mode transport service | |
| COTS | connection oriented transport service | |
| CP | Capability Package | |
| CP | Change Proposals | |
| CP | cooperation partners | |
| CPC | cyclic permutable code | STC CSNI final report 22/9/95 |
| CPE | circular position error | |
| CPL | current flight plan | |
| CPME | calibration and performance monitoring equipment | |
| CPND | Comite pour les Problemes Nationaux de Defense | |
| CPP | communications protocol processor | |
| CPR | civilian personell regulation | |
| CR | central region | |
| CR | coastal radar | |
| CR SDMP | central region software development and maintenance procedure | |
| CR SSC | central region system support centre | |
| CRAOC | central region air operation centre | |
| CRAQS | circiut routing automated query system | |
| CRAS | central region access system | |
| CRC | central region command | Ex Strong Resolve 95 |
| CRC | control and reporting centre | |
| CRC | cyclic redundancy check | |
| CRCLD | central region communication logistics depot | |
| CRESP | crisis response prototype | |
| CRIAD | central region integrated air defence | |
| CRIAP | central region initial ACCS programme | |
| CRICS | Central Region integrated communications system | |
| CRINCA | Central Region integration and communications architecture | BICES sub-group |
| CRIS | coastal radar integration system | |
| CRISUG | central region information system user group | |
| CRL | certificate revocation list | AC/317-N/846 |
| CRMCS | central RADNET monitoring and control system | |
| CRONOS | crisis response operations in open systems | AC/317(WG/1)DS/94 |
| CROSSFOX | (ACE striking fleet Atlantic command and control system) | |
| CRP | circuit restoration priority | |
| CRP | control and reporting post | |
| CRSG | Central Region signal group | |
| CRT | cathode ray tube | |
| CRWG | Central Region working group | |
| CS | combat support | |
| CS | communication sub-system | |
| CSA | central supplies agency | |
| CSA | close support aircraft | |
| CSAF | combat scene of action frequency | |
| CSAR | combat search and rescue | |
| CSCE | conference on security and cooperation in Europe | |
| CSCS | Combat Zone Communication System | |
| CSCS | Combat Zone Communication System | |
| CSDN | circuit switched data network | |
| CSL | coordinated single layer | |
| CSMA/CD | carrier sense multiple access/collision detector | |
| CSMNE | COMSUBMEDNOREAST | Part of former fourth level of the NATO command structure |
| CSMS | counter surprise military system | |
| CSN | circuit switched network | |
| CSNI | communications systems network interoperability | |
| CSO | chief signal officer | |
| CSOT | control source operators network | |
| CSP | communications support processor | |
| CSPDN | circuit switched public data network | |
| CSR | communications status report | |
| CSRS | Community Security Requirement Statement | |
| CSS | communication segment specification | |
| CSS | computer service section | |
| CSTG | communications systems technical experts group | |
| CSWG | communications systems working group | Responsibilities assumed by NC3B Sub-structure |
| CT | conferencing tools ( CT=SVC+SVTC+SVMC) | |
| CTAPS | Contingency Theatre Air Planning System | Ex Strong Resolve 95 |
| CTAPS | contingency theatre automated planning system | AC/317(WG/1)N/607 Add 5 |
| CTF | Commander Task Force | |
| CTG | Commander Task Group | |
| CTI | crypto telephone instrument | |
| CTP | conformance test plan | |
| CTS | cosmic top secret | C-M(55)15 final |
| CTSG | CIS terminology sub group | |
| CUF | common user function | |
| CUG | closed user group | ISDN access restriction |
| CUG | Closed User Group | |
| CUL | CELT user list | |
| CVI | code validity interval | |
| CVO | code validity overlap | |
| CVSD | continuously variable slope delta modulation | STC TN-006 |
| CW | Call Waiting | |
| CW | chemical warfare | |
| CWID | combined warrior interoperability demonstrator | |
| CWRD | civil works requirement drawings | |
| CZCS | Combat Zone Communications System |