Acronyms: I

Acronym	Name
ISSCA	Information Systems Security Certification Agent
ISSM	Information Systems Security Manager
ISSN	Intermediate system sub-network
ISSO	Information Systems Security Officer
ISSS	Initial sector suite system/subsystem
IST	InterService Team
ISU	Initial signal unit
IT	Information Technology
ITAR	International Traffic in Arms Regulations
ITC	In-trail climb
ITD	In-trail descent
ITEB	Information Technology Executive Board
ITI	Interactive Terminal Interface
ITIL	Information Technology Infrastructure Library
ITMRA	Information Technology Management Reform Act
ITP	In-trail procedures
ITS	Integrated test system
ITSE	Integrated test and support environment
ITSM	Information Technology Service Management
ITU	International Telecommunications Union
ITWS	Integrated Terminal Weather System
ITWS	Integrated terminal weather system
IUPS	Internal uninterruptible power supply
IV	Isolation valve
IVRS	Interim Voice Response System
IVSI	Instantaneous vertical speed indicator
IVSR	Interim Voice Switch Replacement Program
IVT	Interactive Video Teletraining
IW	Inside Wiring
IWGDS	Interim Weather Graphic-Display System
InFO	Information For Operators
InterNIC	Internet Network Information Center
Interop	Interoperability