DCA may refer to:

Computers

Document Content Architecture Document Content Architecture, or DCA for short, is a standard developed by IBM for text documents in the early 1980s. DCA was used on mainframe and IBM i systems, and formed the basis of DisplayWrite's file format. DCA was later extended as MO ...

, an IBM document standard *

Dynamic Channel Allocation In radio resource management for wireless and cellular networks, channel allocation schemes allocate bandwidth and communication channels to base stations, access points and terminal equipment. The objective is to achieve maximum system spectral ef ...

/Assignment, in wireless networks * DTS Coherent Acoustics in

DTS (sound system) DTS, Inc. (originally Digital Theater Systems) is an American company that makes multichannel audio technologies for film and video. Based in Calabasas, California, the company introduced its DTS technology in 1993 as a competitor to Dolby La ...

Military

Defence Cyber Agency The Defence Cyber Agency (DCyA) is a tri-service command of the Indian Armed Forces. Headquartered in New Delhi, the agency is tasked with handling cyber security threats. The DCyA draws personnel from all three branches of the Armed Forces. The ...

, a tri-service command of the Indian Armed Forces * Defense Communications Agency, former name of US Defense Information Systems Agency * Defensive counter air (''Défense contre les aéronefs''), French term for air defense * Deputy Commandant for Aviation, principle advisor on all aviation matters in the United States Marine Corps

Organizations

California Department of Consumer Affairs The California Department of Consumer Affairs (DCA) is a department within the California Business, Consumer Services, and Housing Agency. DCA's stated mission is to serve the interests of California's consumers by ensuring a standard of profess ...

Department for Constitutional Affairs The Department for Constitutional Affairs (DCA) was a United Kingdom government department. Its creation was announced on 12 June 2003; it took over the functions of the Lord Chancellor's Department. On 28 March 2007 it was announced that the Dep ...

of the UK government, 2003-2007 * DCA Design *

Department of Civil Aviation (Australia) The Department of Civil Aviation (also called the DCA) was an Australian government department that existed between November 1938 and November 1973. History The Department of Civil Aviation had its origins as the Civil Aviation Branch ...

* Department of Civil Aviation (Thailand) * Digital Communications Associates, US company * Diyanet Center of America, Lanham, Maryland * Drum Corps Associates, a governing body of drum corps in North America * Dundee Contemporary Arts, Scotland * Namibia Directorate of Civil Aviation * Christian Democracy for the Autonomies, a former political party in Italy

Science and technology

* Detrended correspondence analysis, a statistical technique * Dichloroacetic acid / dichloroacetate, an organic acid * Dichloroethanes, organic solvents * Digitally-controlled amplifier * Direct coupling analysis, a method for analyzing sequence data in computational biology

Television, film, and music

* Distributors Corporation of America, American film distribution company (1952-1959)

Transportation

* Ronald Reagan Washington National Airport, Arlington County, Virginia, US, IATA code * Dutch Caribbean Airlines, former Netherlands Antilles airline

Other uses

* Direct corporate access, part of UK Faster Payments Service * Dollar cost averaging, an investment strategy * Disney California Adventure, Anaheim, California, US * Debt Collection Agency, companies specialized in pursuing payments of debts {{disambiguation