IAA may refer to:

Science and Medicine

Indole-3-acetic acid Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. IAA is a derivative of indole, co ...

, a plant hormone * Aux/IAA repressors, a class of early

auxin Auxins (plural of auxin ) are a class of plant hormones (or plant-growth regulators) with some morphogen-like characteristics. Auxins play a cardinal role in coordination of many growth and behavioral processes in plant life cycles and are essenti ...

responsive transcription factors in plants * Insulin autoantibody, used in diagnosing Latent autoimmune diabetes *

Interrupted aortic arch In digital computers, an interrupt (sometimes referred to as a trap) is a request for the processor to ''interrupt'' currently executing code (when permitted), so that the event can be processed in a timely manner. If the request is accepted, ...

, a medical condition *

Instituto de Astrofísica de Andalucía The Institute of Astrophysics of Andalusia ( es, Instituto de Astrofísica de Andalucía, IAA-CSIC) is a research institute funded by the High Council of Scientific Research of the Spanish government Consejo Superior de Investigaciones Científ ...

, for the (IAA-CSIC) research institute in Spain *

Iodoacetamide 2-Iodoacetamide is an alkylating agent used for peptide mapping purposes. Its actions are similar to those of iodoacetate. It is commonly used to bind covalently with the thiol group of cysteine so the protein cannot form disulfide bonds. Also used ...

, an alkylating agent *

Isoamyl alcohol Isoamyl alcohol is a colorless liquid with the formula , specifically (H3C–)2CH–CH2–CH2–OH. It is one of several isomers of amyl alcohol (pentanol). It is also known as isopentyl alcohol, isopentanol, or (in the IUPAC recommended nomencla ...

, a common name for 3-Methylbutan-1-ol *

Independent Ambulance Association The Independent Ambulance Association or IAA is the non-profit body representing ambulance services regulated by the Care Quality Commission in England, but not part of the statutory National Health Service The National Health Service (NHS) ...

representing private ambulance services in the United Kingdom

Aviation

Igarka Airport Igarka Airport () is an airport in Krasnoyarsk Krai, Russia located south of Igarka Igarka (russian: Ига́рка) is a town in Turukhansky District of Krasnoyarsk Krai, Russia, located north of the Arctic Circle. Igarka is a monotown ...

IATA code *

Indianapolis Airport Authority Indianapolis Airport Authority (IAA) is a municipal corporation established by the Indiana General Assembly in 1962. It is responsible for owning, developing and operating several public airports and one public heliport located in and around Indian ...

Iran Aseman Airlines Iran Aseman Airlines ( fa, هواپیمایی آسمان, Havâpeymâyi-ye Âsemân) is the third-largest Iranian airline headquartered in Tehran. It operates scheduled domestic passenger services and regional international services. History ...

, an Iranian airline *

Irish Aviation Authority The Irish Aviation Authority (IAA) ( ga, Údaras Eitlíochta na hÉireann) is a commercial semi-state company in Republic of Ireland, Ireland responsible for the regulation of safety aspects of air travel. It is also responsible for providing air ...

Israel Airports Authority The Israel Airports Authority (IAA, he, רשות שדות התעופה בישראל, ''Reshut Sdot HaTe'ufa BeYisra'el''; ar, سلطة المطارات في إسرائيل) was founded in 1977 as a Government-owned corporation, public corporatio ...

International Academy of Astronautics The International Academy of Astronautics (IAA) is an independent non-governmental organization established in Stockholm ( Sweden) on August 16, 1960, by Dr. Theodore von Kármán, and recognized by the United Nations in 1996. The IAA has electe ...

Automobile

International Motor Show Germany The International Motor Show Germany or International Mobility Show Germany, in German known as the ''Internationale Automobil-Ausstellung'' (''IAA'' – International Automobile Exhibition), is one of the world's largest mobility shows. It cons ...

, known natively as Internationale Automobil-Ausstellung

Computing

* Interactive Achievement Awards, now known as

D.I.C.E. Awards The D.I.C.E. Awards (formerly the Interactive Achievement Awards) is an award show in the video game industry started in 1998 and commonly referred to in the industry as the "video games Academy Awards, Oscar". The awards are arranged by the Ac ...

Education

Idyllwild Arts Academy Idyllwild Arts Academy is a private school located in Idyllwild, in the San Jacinto Mountains and San Bernardino National Forest, within western Riverside County, California. The school was founded in 1946. It was previously known as Idyllwild Sc ...

, a private high school in Idyllwild, California * Intercollegiate Athletic Association, former name of the

National Collegiate Athletic Association The National Collegiate Athletic Association (NCAA) is a nonprofit organization that regulates student athletics among about 1,100 schools in the United States, Canada, and Puerto Rico. It also organizes the athletic programs of colleges an ...

Interlochen Arts Academy Interlochen Center for the Arts is a non-profit corporation which operates arts education institutions and performance venues in northwest Michigan. It is situated on a campus in Interlochen, Michigan, roughly southwest of Traverse City. In ...

, a boarding school at the Interlochen Center for the Arts *

Inter-American Academy of Guayaquil InterAmerican Academy of Guayaquil (IAA) is an American International school in Guayaquil, Guayas, Ecuador, serving two years (nursery level) through grade 12.Information Affairs Authority The Information Affairs Authority (IAA) is Bahrain's ministry of information that was formed in July 2010. The president of IAA is appointed directly by the King of Bahrain and has the rank of a minister in the Bahrain government. From July 20 ...

of Bahrain

Sports

International Ammunition Association The International Ammunition Association (IAA) is a nonprofit organization whose stated purpose is to foster interest and knowledge in ammunition of all types and forms.''IAA Journal'', (Issue 452, Nov/Dec 2006) p. 2 It was founded in 1955 as the ...

Associations

Academia Sinica Institute of Astronomy and Astrophysics The Academia Sinica Institute of Astronomy and Astrophysics (also known as the Institute of Astronomy and Astrophysics, abbreviated as ASIAA or IAA. ) is a research institute of the national academy of Taiwan, Academia Sinica. ASIAA is currently ...

, a research institute in Taiwan *

Illinois Agricultural Association The Illinois Farm Bureau (IFB) is a nonprofit U.S. organization controlled by farmers who join the IFB through one of the 96 county Farm Bureaus in Illinois. The organization's legal name is the Illinois Agricultural Association. The IFB was fo ...

Immigration Appellate Authority The Immigration Appellate Authority (IAA) was an independent judicial body in the United Kingdom constituted under the Immigration Act 1971, with jurisdiction to hear appeals from many immigration and asylum decisions. Administered by the Tribun ...

(UK) *

Indian Association of Alberta The Indian Association of Alberta is a province-wide First Nations rights organization. It was founded by John Callihoo and John Laurie in 1939, after splitting off from the League of Indians in Western Canada. Origins and expansion Before 1946 ...

Institute for Applied Autonomy The Institute for Applied Autonomy was an activist group of anonymous artists known for employing technology in protest. The group focused on dissemination of knowledge, autonomy, and methods of self-determination through artistic expression and ...

Instituto de Arqueología Amazónica The Instituto de Arqueología Amazónica (IAA, Amazon Archaeology Institute) is a non-profit research center organisation affiliated to the National Institute of Culture of Peru The present director is Dr. Federico Kauffmann Doig Federico Kauf ...

, archeological research institute in Peru *

, research institute funded by the Spanish government *

International Academy of Architecture The International Academy of Architecture - ''a non-profit-making company for performing activities for private benefit'' (IAA, bg, Международна архитектурна академия) is a non-governmental and non-profit organizat ...

, Bulgarian NGO & NPO *

, Swedish NGO *

International Actuarial Association The International Actuarial Association (IAA) is a worldwide association of local professional actuarial associations. History The IAA is the continuation of the ''Comité Permanent des Congrès d’Actuaires'', established in 1895, as an assoc ...

, worldwide association of actuarial associations *

International Advertising Association The International Advertising Association (IAA) is a global association that represents marketers, ad agencies and mass media that carries advertisements. With headquarters in New York, United States, it has chapters in 77 countries. It was founded ...

, international marketing industry association *

International Association of Art International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The T ...

International Astrostatistics Association The International Astrostatistics Association (IAA) is a non-profit professional organization for astrostatisticians. Astrostatistics as a discipline is composed of astrophysicists, statisticians, and those in computer information sciences who ha ...

Investment Adviser Association Investment is the dedication of money to purchase of an asset to attain an increase in value over a period of time. Investment requires a sacrifice of some present asset, such as time, money, or effort. In finance, the purpose of investing i ...

Israeli Astronomical Association The Israeli Astronomical Association (IAA) is an Israeli nonprofit organization. Its purpose is to deepen and distribute the awareness for the field of astronomy among the Israeli public. History The Israeli Astronomical Association was establishe ...

State institutions

Instituto Antártico Argentino The Instituto Antártico Argentino (IAA; en, Argentine Antarctic Institute) is the Argentine federal agency in charge of orientating, controlling, addressing and performing scientific and technical research and studies in the Antarctic. Known as ...

, Argentine Antarctic Institute: federal agency for Antarctic research *

Israel Antiquities Authority The Israel Antiquities Authority (IAA, he, רשות העתיקות ; ar, داﺌرة الآثار, before 1990, the Israel Department of Antiquities) is an independent Israeli governmental authority responsible for enforcing the 1978 Law of ...

, Israeli governmental authority

Other uses

* Id al Adha, Muslim holiday *

Intelligence Authorization Act The Intelligence Authorization Act was implemented in order to codify covert, clandestine operations and defines requirements for reporting such operations to the Congress. The American Constitution states, in Article 1, Section 9, that "a regu ...

(1991 - U.S.) * Islamic Army of Aden, militant group designated as a terrorist organization by Bahrain, Canada and the UK {{disambig