English abbreviations from ias to iatacs
- IAS (Indicated airspeed)
- IASB (International African Service Bureau)
- IASC (Interagency Standing Committee (UN))
- IASD (Instant Ammunition Selection Device)
- IASE (Iowa Association of Safety Education)
- IASED (Information Assurance and Security Engineering Directorate)
- IASH (International Association for Stability Handling and Use of Liquid Fuels)
- IASI (International Association for Sports Information)
- IASIL (International Association for the Study of Irish Literatures)
- IASIP (It's Always Sunny in Philadelphia)
- IASIS (International Association for Student Insurance Services)
- IASIW (Institute for the Advanced Study of Information Warfare)
- IASM (Informative All Student Meetings)
- IASO (International Association for the Study of Obesity)
- IASP (International Association for the Study of Pain)
- IASY ((observing program) International Active Sun Year, the name given to a series of coordinated Sun-related observational programs performed in 1969 and 1971)
- IAT (Internal Active Turret)
- IATA (International Air Transport Association)
- IATACS (Improved Army Tactical Area Communications System)