CIR or Cir may refer to:

Locations

Cairo Regional Airport Cairo Regional Airport, is a county-owned public-use airport located northwest of the central business district of Cairo, Illinois, a city in Alexander County, Illinois, United States. It is included in the Federal Aviation Administration (FAA) ...

, FAA/IATA code, CIR * CIR, station code for the Caledonian Road & Barnsbury railway station in the UK * Christmas Island Resort, a casino/resort in the northeastern Indian Oceans

Organizations

* Center for Individual Rights, a US non-profit public interest law firm *

Center for Investigative Reporting The Center for Investigative Reporting (CIR) is a nonprofit news organization based in Emeryville, California. It was founded in 1977 as the nation’s first nonprofit investigative journalism organization, and has since grown into a multi-plat ...

, a nonprofit journalism organization * Christian Initiative Romero, a German non-profit organization supporting industrial law and human rights in Central America *

Cosmetic Ingredient Review The Cosmetic Ingredient Review (CIR), based in Washington, D.C., assesses and reviews the safety of ingredients in cosmetics and publishes the results in peer-reviewed scientific literature. The company was established in 1976 by the Personal Care ...

, a consumer safety group

Politics and government

Commissioner of Internal Revenue The Commissioner of Internal Revenue is the head of the Internal Revenue Service (IRS), an agency within the United States Department of the Treasury. The office of Commissioner was created by Congress as part of the Revenue Act of 1862. Secti ...

, a US Treasury position * Committee on International Relations, renamed the

United States House Committee on Foreign Affairs The United States House Committee on Foreign Affairs, also known as the House Foreign Affairs Committee, is a standing committee of the U.S. House of Representatives with jurisdiction over bills and investigations concerning the foreign affair ...

in 2007 *

Comprehensive Immigration Reform Act of 2006 The Comprehensive Immigration Reform Act (CIRA, ) was a United States Senate bill introduced in the 109th Congress (2005–2006) by Sen. Arlen Specter (R-PE) on April 7, 2006. Co-sponsors, who signed on the same day, were Sen. Chuck Hagel (R-NE), ...

, a US Senate bill * Convention of Republican Institutions, a defunct French political party * Citizen initiated Referendum, a type of

referendum A referendum (plural: referendums or less commonly referenda) is a direct vote by the electorate on a proposal, law, or political issue. This is in contrast to an issue being voted on by a representative. This may result in the adoption of ...

initiated by the signature of a certain minimum number of registered voters *

Cyber and Information Domain Service (Germany) The Cyber and Information Domain Service (german: Cyber- und Informationsraum, ; CIR) is the youngest branch of Germany's military, the Bundeswehr. The decision to form a new military branch was presented by Defense Minister Ursula von der Leyen ...

(

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

: ''Cyber- und Informationsraum''; CIR), the cyber branch of Germany's military

Science and medicine

* CIR (gene), a gene that encodes the protein corepressor interacting with RBPJ in humans * Carbon isotope ratio analysis, a subset of isotope ratio mass spectrometry * Central ischaemic response, a cause of fainting * Co-rotating interaction region, the interface between fast and slow regions of the

solar wind The solar wind is a stream of charged particles released from the upper atmosphere of the Sun, called the corona. This plasma mostly consists of electrons, protons and alpha particles with kinetic energy between . The composition of the ...

* Cir, abbreviation for the constellation

Circinus Circinus is a small, faint constellation in the southern sky, first defined in 1756 by the French astronomer Nicolas-Louis de Lacaille. Its name is Latin for compass, referring to the drafting tool used for drawing circles (it should not be con ...

Technology

* Carrier-to-interference ratio, in radio transmission *

Color infrared ''Top:'' tree photographed in the near infrared range. ''Bottom:'' same tree in the visible part of the spectrum. In infrared photography, the film or image sensor used is sensitive to infrared light. The part of the spectrum used is ...

film, in photography * Combustion Integrated Rack, an International Space Station microgravity research tool * Committed information rate, or minimum guaranteed bitrate, in telecommunications * Consumer IR, a class of remote control and communication devices

Other uses

* Committee on International Relations (University of Chicago), a graduate program *

CIR Group CIR Group (''Compagnie Industriali Riunite'') is an Italian holding company listed on the stock exchange which is 46% controlled by COFIDE of the De Benedetti family. The company was founded in 1976, when Carlo De Benedetti acquired the company Co ...

, an Italian holding company *

Coordinator for International Relations A , or CIR, is a participant on the JET Programme residing and working in Japan. Although responsibilities for a CIR vary according to his or her contracting organization, the majority of a CIR's time is spent organizing and assisting various proj ...

, a position within the Japan Exchange and Teaching Program * Cost/income ratio, a

financial ratio A financial ratio or accounting ratio is a relative magnitude of two selected numerical values taken from an enterprise's financial statements. Often used in accounting, there are many standard ratios used to try to evaluate the overall financia ...

* The

Cox–Ingersoll–Ross model In mathematical finance, the Cox–Ingersoll–Ross (CIR) model describes the evolution of interest rates. It is a type of "one factor model" (short-rate model) as it describes interest rate movements as driven by only one source of market ...

for interest rate dynamics * '' Campionato Italiano Rally'' (Italian Rally Championship), in automobile racing * Arctic Circle Air, ICAO code {{disambig