| Acronyms | Meaning / Significance |
Source |
| I&P | information and press | |
| I&W | Indications and Warnings | |
| I/F | interface | STC CSNI final report 22/9/95 |
| I-CASE | integrated computer-aided software engineering | |
| I-Series | integrated services digital network | CCITT |
| IA | integral ACCS | |
| IA | internal auditor | |
| IAD | integrated air defense | |
| IADS | Iceland air defense system | |
| IAGB | inter army group boundary | |
| IALCE | international air lift control element | |
| IAMM | interoperability analysis and management model | ATCA database |
| IAS | indicated air speed | |
| IAU | infrastructure accounting unit | |
| IAU | international accounting unit | |
| IAWS | indicators and warning system | |
| IBA | international board of auditors | |
| IBCN | integrated broadband communications network (ISDN+BISDN) | |
| IBS | industrial benefit share | |
| IBS | ISO/CCITT base standard | |
| IC | information category | |
| IC | infrastructure committee | AC/4(WG29)DS/139 |
| ICAO | international civil aviation organization | |
| ICAOC | interim combined air operation centre | |
| ICAPS | integrated command anti submarine warfare prediction system | |
| ICB | international competitive bidding | AC/4-D/2261 |
| ICC | information and coordinating centre | Patriot |
| ICC | initial core capability | |
| ICC | interim CAOC capability | |
| ICCCM | inter-client communications conventions manual | |
| ICD | imitative communications deception | |
| ICD | interface control document | |
| ICD | international code designator | |
| ICMIS | interim crisis management interface system | WG 29 meeting 140 |
| ICMP | internet control message protocol | |
| ICP | infrastructure capability package | |
| ICP PG | ICP planning group | |
| ICP RB | ICP review board | |
| ICRC | international committee of the red cross | |
| ICT | information and communications technology | |
| ICT | intercept standard | |
| ID | identification | |
| IDA | initial deployment area | |
| IDA | integrated digital access | |
| IDAC | interim deployable ACCS component | Ex Strong Resolve 95 |
| IDB | integrated data base | |
| IDBO | identification by origin | |
| IDCP | identification data combining process | |
| IDF | intermediate distribution frame | |
| IDHS | intelligence data handling system | BICES |
| IDI | initial domain identifier | |
| IDM | intelligent database machine | |
| IDMC | Intelligence Data Management Concept | |
| IDN | Integrated Digital Network Exchange | |
| IDNX | Integrated Digital Network Exchange | |
| IDNX | Integrated Digital Network Exchange | |
| IDO | identification officer | |
| IDP | initial domain part | |
| IDS | Intruder Detection System | |
| IDS | intrusion detection system | |
| IDTSN | Italian digital tri-service network | weekly minutes 6-12-95 |
| IDUP | independent data unit protection | AC/317-N/846 |
| IE | information exchange | |
| IEC | international electronical commission | |
| IEEE | institute of electrical and electronic engineers | |
| IEG | information exchange group | |
| IEP | information exchange plan | ACE IEP |
| IEP | information exchange plan | |
| IEPG | independent European programme group | |
| IEPI | ICAOC execution and planning system | |
| IEPS | ICAOC execution planning system | |
| IER | information exchange requirements | AC/317(WG/1)N/606 |
| IERD | information exchange requirement document | |
| IETM | interactive electronic technical manual | |
| IETF | Internet Engineering Task Force | |
| IF | interface | |
| IFB | information for bids | |
| IFB | invitation for bidding | NACISA USD 23.01.00(93)01 |
| IFB | invitation for bids | |
| IFF | identification friend/foe | |
| IFL | international frequency list | |
| IFOR | implementation forces (former Yugoslavia) | |
| IFPL | initial flight plan | |
| IFR | instrument flight rules | |
| IFRB | international frequency radio band | |
| IFREP | in flight report net | |
| IGB | inter-Germany border | |
| IGES | initial graphics exchange specification | |
| IGMP | internet group management protocol | |
| IGOSS | industry/government open system specification | |
| IGW | intergateway | |
| II-codes | interrogator - identifier codes | |
| IIH | IS to IS Hello PDUs | STC CSNI final report 22/9/95 |
| IIO | interallied insurance organization | |
| IIP | intelligent interface processor | |
| IIS | indirektes Identifizierungssystem | |
| IJMS/D4 | interim JTIDS message specification | ADSIA |
| ILCEP | infrastructure, logistics and civil emergency planning | AC/317-N/798 |
| ILS | instrument landing system | |
| ILS | integrated logistics support | |
| ILSD | intermediate level system design | STC CSNI final report 22/9/95 |
| ILSP | Intergrated Logistic Support Plan | |
| IMF | international monetary fund | |
| IMG | interim management group | |
| IMP | interface message processor | |
| IMRP | interrogator modulator reply processor | mode S |
| IMS | international military staff | |
| INCA | intelligence communications architecture | |
| INF | intermediate range nuclear forces | FNI |
| INFOSEC | information security | |
| INMARSAT | international maritime satellite | |
| INR | initial nuclear radiation | |
| INS | indirect NICS subscriber | NACISA/APD/04.07.00(95)001 |
| INS | inertial navigation system | |
| INTB | international border | |
| INTELSAT | international telecommunications satellite | |
| INTERNET | inter network | STC CSNI final report 22/9/95 |
| INTNET | integrated flight data network | |
| INTREP | Intelligence Summary | |
| INTSUM | Intelligence Report | |
| INX | information exchange | |
| IOC | initial operational capability | NIDTS TBCE |
| IoI | interrogator of interest | |
| IONL | internal organization of the network layer | |
| IOS | international organisation for standardisation | |
| IP | internet protocol | |
| IP | interoperability parameter | |
| IPB | Intelligence Preparation of the Battlefield | |
| IPC | industrial planning committee | |
| IPC | information processing centre | |
| IPC | Initial Planning Conference | |
| IPC | Initial Planning Conference | |
| IPM | interpersonal message | |
| IPM | interpersonal messaging | |
| IPMS | interpersonal messaging system | |
| IPO | international project office | |
| IPP | individual partnership programme | |
| IPPC | infrastructure payments and progress committee | |
| IPR | intellectual property rights | COTS software |
| IPRB | infrastructure project review board | |
| IPRL | international profile requirements list | |
| IPS | initial processing site | |
| IPS | installed performance specification | |
| IPT | implementation and policy coordination team | NACISC/TSGCE Nov 95 meeting |
| IPT | implementation and policy team | AC/317-DS/26 |
| IPT | implementation planning team | |
| IPV | interactive packet voice | STC CSNI final report 22/9/95 |
| IPX | INTERNET protocol extended | |
| IRB | infrastructure review board | |
| IRBM | intermediate range ballistic missile | |
| IRD | information resource dictionary system | |
| IRD | interface requirements document | |
| IRDS | information resource dictionary system | data management |
| IRF | immediate reaction forces | |
| IRIS | COTS message handling and processing software | |
| IRITEL | Italian RPO | |
| IRM | information resources management | |
| IRM | Integrated Resource Management | |
| IRP | infrastructure requirements package | |
| IRR | infra-red reflective | |
| IRRB | infrastructure requirements review board | |
| IRS | installation requirements specification | |
| IRSMC | integrating remote system of monitoring and control | |
| IRT | interrogation repetition time | |
| IS | information system | |
| IS | intermediate system | |
| IS | international staff | |
| IS | international standard | ISO |
| IS | interworking services | |
| ISA | initial system architecture | STC CSNI final report 22/9/95 |
| ISAF | Information System Access Facility | |
| ISB | improved SHAPE broadcast | |
| ISBN | international standard book number | |
| ISC | interim system capability | |
| ISC | international switching centre | |
| ISCC | information system co-ordination committee | |
| ISCG | information system coordinating group | |
| ISD | information system division | |
| ISDN | integrated services digital network | STC ISDN orientation symposium |
| ISEE | integrated software engineering environment | |
| ISID | IVSN STANAG 5040 interface device | |
| ISIS | Integrated Staff Information System | |
| ISIS | Integrated Staff Information System | |
| ISLS | interrogation path side lobe suppression | |
| ISMO | information system management office | |
| ISO | international standards organization | |
| ISP | information system plan | |
| ISP | intelligence support processor | |
| ISP | international standard profile | |
| ISP | international standardized profiles | |
| ISPABX | integrated services PABX | STC CSNI final report 22/9/95 |
| ISPBX | integrated services private branch exchange | NATO HQ comm system |
| ISPC | interim system planning concept | |
| ISPICS | ISO standardized profile implementation conformance statement | |
| ISS | information system services | |
| ISS | information system sub-system | |
| ISS | Information Systems Service | |
| ISS | Information Systems Service | |
| ISSC | integrated software support centre | Ex Strong Resolve 95 |
| IST | inter switch trunk | |
| ISTC | information systems technical experts group | |
| ISU | international support unit | |
| ISUP | ISDN user part | |
| ISWG | information systems working group | |
| IT | information technology | |
| ITB | integrated testbed | |
| ITC | information transfer centre | |
| ITEC | improved TNF C2 emergency communications | |
| ITPB | information technology policy board | |
| ITSEC | information technology security evaluation criteria | |
| ITSEM | information technology security evaluation manual | |
| ITSN | Italian tri-service network | |
| ITT | inter TARE trunk | |
| ITT | invitation to tender | |
| ITU | international telecommunication union | AC/317-N/839 |
| ITU | international telecommunication unit | |
| ITU-T | ITU - telecommunication standardization sector | AC/317-N/839 |
| ITU-TSB | ITU - telecomm. standardisation bureau | |
| IU | interface unit | |
| IUKADGE | AC/317(WG/1)(SG/2)N/183 | |
| IVA | AC/317(WG/1)(SG/2)N/183 | |
| IVB | AC/317(WG/1)(SG/2)N/183 | |
| IVDLAN | integrated voice and data LAN | |
| IVPN | international virtual private network | N.04.01.00 |
| IVSN | NATO initial voice switched network | NACISA/APD/04.07.00(95)001 |
| IVUL | initial voice user list | IVSN |
| IWG | ALSP interface working group | |
| IWHQ | interim war headquarter | |
| IWU | interworking unit |