Acronyms: I

Acronym	Name
IFO	International Field Office
IFP	Instrument Flight Procedures
IFPA	Instrument Flight Procedures Automation Program
IFPS	Integrated initial flight plan processing system
IFR	Instrument Flight Rules
IFR	Instrument flight rules
IFRB	International Frequency Registration Board
IFSS	International Flight Service Station
IG	Inspector General
IGES	Initial graphic exchange specification
IGES	Intermediate ground earth station
IGIA	Interagency Group on International Aviation
IGV	Inlet guide vane
IHAS	Integrated hazard avoidance system
IIE	Integrated Information Environment
ILA	International Law Association
ILM	Independent landing monitor
ILM	Inventory Logistics and Maintenance Suite
ILS	Instrument Landing System
ILS	Instrument landing system
ILS/PRM	Instrument Landing System/Precision Runway Monitor
ILSP	Integrated logistics support plan
IM	Inner Marker
IM	Interim Migration
IMA	Integrated modular avionics
IMC	Instrument Meteorological Conditions
IMC	Instrument meteorological conditions
IMG	Implementation manager group
IMU	Inertial measurement unit
INAV	Interactive navigation
INFO	Information frame
INM	Integrated Noise Model
INMARSAT	International Maritime Satellite Organization
INMS	Integrated network management system
INS	Inertial Navigation System
INS	Inertial navigation system
INTELSAT	International Telecommunications Satellite Organization
IO	Information operations (U.S. Army)
IOC	Initial Operating Condition
IOC	Initial Operational Capability
IOC	Initial operating capability
ION	Institute of Navigation
IOR	Indian Ocean region
IOS	Internet operating system
IOT&E	Independent Operational Test and Evaluation
IOT&E	Initial operational test and evaluation
IP	Intellectual property
IP	Internet protocol
IPACG	Informal Pacific ATC Coordination Group
IPC	Intermediate pressure compressor
IPC	Interprocess communication
IPD	Industrial products division
IPDS	Instrument Procedure Development System
IPI	Initial protocol identifier
IPMS	IT Program Management System
IPR	In Process Review
IPR	Internet protocol router
IPT	Integrated product team
IPT	Integrated project team
IPT	Intermediate pressure turbine
IR	IFR Military Training Route
IR	Infrared
IR&D	Investment research and development
IRAC	Interdepartmental Radio Advisory Committee
IRD	Initial Requirements Document
IRIG-B	Inter-range instrumentation group-time code format B
IRIS	Iris Recognition Immigration System
IRM	Information Resource Management
IRMC	Integrated Risk Management Checklist
IRMP	Information Resources Management Plan
IRP	Integrated refuel panel
IRR	Internal rate of return
IRS	Inertial reference system
IRS	Interface requirements specification
IRU	Inertial Reference Unit
IRU	Inertial reference unit
IS	Intermediate system
ISA	Industry standard architecture
ISA	Instrument Society of America
ISBP	Information Security Business Portal
ISC	Initial System Capability
ISC	Integrated systems controller
ISDN	Integrated services digital network
ISDOS	Information system design and optimization system
ISDU	Inertial system display unit
ISH	Intermediate system hello
ISIS	Integrated sensor is structure
ISLN	Isolation
ISMLS	Interim Standard Microwave Landing System
ISMS	In-flight safety monitoring system
ISO	Information System Owner
ISO	International Organization for Standardization
ISO	International Standards Organization
ISO	PA ISO protocol architecture
ISP	Integrated switching panel
ISP	Internet service provider
ISR	Interrupt service routine
ISR	Intelligence, surveillance and reconnaissance
ISS	Information Systems Security
ISS	Integrated surveillance system

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Acronyms: I