TAC, or tac, may refer to:

People

Pablo Tac Pablo Tac (1822–1841) was a Luiseño (''Quechnajuichom'' also spelled "Qéchngawichum") Indian and indigenous scholar who provided a rare contemporary Native American perspective on the institutions and early history of Alta California. He cre ...

, US scholar * Pham Cong Tac, a leader of the Cao Dai religion

Places

Tác Tác is a village in Hungary. In the time of Roman Empire it was known as ''Gorsium-Herculia''. An open-air museum An open-air museum (or open air museum) is a museum that exhibits collections of buildings and artifacts out-of-doors. It is a ...

, a village in Fejér County, Hungary

Organisations

TAC (building automation) TAC is a Swedish-based building automation company in the fields of both energy solutions and security. It also operates in other countries including the United Kingdom and the United States. It was originally established as Tour Agenturer in 19 ...

, a Swedish building automation company *

Tactical Air Command Tactical Air Command (TAC) is an inactive United States Air Force organization. It was a Major Command of the United States Air Force, established on 21 March 1946 and headquartered at Langley Air Force Base, Virginia. It was inactivated on 1 J ...

, a former command of the US Air Force *

Technical Advisory Council The Technical Advisory Council (TAC) is a federal advisory committee of the Federal Communications Commission and the FCC's Office of Engineering and Technology (OET). Its mandate is to provide the FCC with technical advice in such rapidly growing f ...

, a committee advising the US FCC * Technical Assistance Center, a company's internal support group for external customers *

The Aleut Corporation The Aleut Corporation, or TAC, is one of thirteen Alaska Native Regional Corporations created under the Alaska Native Claims Settlement Act of 1971 (ANCSA) in settlement of aboriginal land claims. The Aleut Corporation was incorporated in Alaska on ...

, Alaska, United States, a Native Regional Corporation *

The Analysis Corporation The Analysis Corporation (TAC) was the Intelligence Solutions business of Global Defense Technology & Systems, Inc. (GTEC), now Sotera Defense Solutions, a defense contracting company. Based in McLean, Virginia, it is a wholly owned subsidiary of ...

, a private intelligence firm * The Ant Commandos, a company which produces video game console peripherals *

The Asatru Community ''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the m ...

, an inclusive Norse Pagan/Heathen sect; see

Kindred (Heathenism) Heathenry, also termed Heathenism, contemporary Germanic Paganism, or Germanic Neopaganism, is a modern Pagan religion. Scholars of religious studies classify it as a new religious movement. Developed in Europe during the early 20th centu ...

The Athletics Congress USA Track & Field (USATF) is the United States national governing body for the sports of track and field, cross country running, road running and racewalking (known as the sport of athletics outside the US). The USATF was known between 1979 and ...

, US sports governing body, became USATF in 1992 *

The Architects Collaborative The Architects Collaborative (TAC) was an American architectural firm formed by eight architects that operated between 1945 to 1995 in Cambridge, Massachusetts. The founding members were Norman C. Fletcher (1917-2007), Jean B. Fletcher (1915-196 ...

, Cambridge, Massachusetts, US *

Thomas Aquinas College Thomas Aquinas College is a Private Roman Catholic liberal arts college with its main campus in Ventura County, California. A second campus opened in Northfield, Massachusetts in 2018. Its education is based on the Great Books and seminar meth ...

, a college with multiple campuses in the US *

Treatment Action Campaign The Treatment Action Campaign (TAC) is a South African HIV/AIDS activist organisation which was co-founded by the HIV-positive activist Zackie Achmat in 1998. TAC is rooted in the experiences, direct action tactics and anti-apartheid background ...

, a South African AIDS organisation *

Treaty of Amity and Cooperation in Southeast Asia The Treaty of Amity and Cooperation in Southeast Asia (TAC) is a peace treaty among Southeast Asian countries established by the founding members of the Association of Southeast Asian Nations (ASEAN), a geo-political and economic organisation of ...

Traditional Anglican Communion The Traditional Anglican Church (TAC), formerly the Traditional Anglican Communion, is an international church consisting of national provinces in the continuing Anglican movement, independent of the Anglican Communion and the Archbishop of Cante ...

Transatlantic Council There have been American Scouts overseas since almost the inception of the movement, often for similar reasons as the present day. Within the Boy Scouts of America (BSA), these expatriate Scouts are now served by two overseas Councils and the Dire ...

, Boy Scouts of America

Transport

* TAC Colombia, a charter airline based in Bogotá, Colombia * TAC, the IATA code for Daniel Z. Romualdez Airport on Leyte island, Philippines * TAC, the National Rail code for

Tackley railway station Tackley railway station is on the Cherwell Valley Line in Oxfordshire, England, serving the village of Tackley and its surrounding area. Great Western Railway operates the station and all but one of the trains serving it. The exception is a ...

in the county of Oxfordshire, UK *

TAC - Transportes Aéreos Catarinense TAC, or tac, may refer to: People * Pablo Tac, US scholar * Pham Cong Tac, a leader of the Cao Dai religion Places * Tác, a village in Fejér County, Hungary Organisations * TAC (building automation), a Swedish building automation company * ...

, a former Brazilian airline * TAC, Taiwan Air Commuter, a small Taiwanese airline *

Tecnologia Automotiva Catarinense TAC - Tecnologia Automotiva Catarinense is an automotive corporation established by Adolfo Cesar dos Santos in 2004 in Joinville, Brazil. In the financial support of BNDES, the plant was opened after four years of construction on 13 March 2008. I ...

(TAC) a Brazilian automotive company *

Terminal area chart In United States and Canada aviation, terminal area charts are aeronautical charts intended for navigation under Visual Flight Rules that depict areas surrounding major airports, primarily those with Class B airspace. Overview Like the VFR secti ...

, an aeronautical chart of the area surrounding a major airport *

Thai Airways Company Thai Airways Company or Thai Airways (TAC; th, เดินอากาศไทย) was the domestic flag carrier of Thailand. Its main base was the domestic terminal (Terminal 3) at Don Mueang International Airport (then known as ''Bangkok I ...

, a former Thai airline *

Trans Air Congo Trans Air Congo (TAC) is an airline based at Pointe Noire Airport in Pointe-Noire, Republic of the Congo. History The company was established on 24 August 1994 by the El-Hage family and started services with a single Let 410 aircraft. Early serv ...

, a Congolese airline *

Transport Accident Commission The Transport Accident Commission (TAC) is the statutory insurer of third-party personal liability (CTP insurance in other states) for road accidents in the State of Victoria, Australia. It was established under the Transport Accident Act 1986 ...

, an insurer in Victoria, Australia

Military and law enforcement

Demro TAC-1 The Demro TAC-1 is a semi-automatic carbine chambered in either .45 ACP or 9×19mm Parabellum. The TAC-1 is the reintroduction of the Fox Carbine to the law enforcement market after a fallout between Gerry Fox, the inventor, and Dean Machine In ...

, a pistol calibre carbine/submachine gun *

McMillan TAC-50 The McMillan TAC-50 is a long-range anti-materiel rifle. The TAC-50 is based on previous designs from the same company, which first appeared during the late 1980s. As of 2017 it holds the record for the longest confirmed sniper kill. McMillan mak ...

, an American sniper rifle *

, a former major command of the United States Air Force * TAC 30, the official name of a

SWAT In the United States, a SWAT team (special weapons and tactics, originally special weapons assault team) is a police tactical unit that uses specialized or military equipment and tactics. Although they were first created in the 1960s to ...

unit belonging to the

King County Sheriff's Office The King County Sheriff's Office (KCSO) is a local police agency in King County, Washington, United States. It is the primary law enforcement agency for all unincorporated areas of King County, as well as 12 cities and two transit agencies which ...

Science and technology

* TAC, a codon for the amino acid

Tyrosine -Tyrosine or tyrosine (symbol Tyr or Y) or 4-hydroxyphenylalanine is one of the 20 standard amino acids that are used by cells to synthesize proteins. It is a non-essential amino acid with a polar side group. The word "tyrosine" is from the Gr ...

* tac, a Linux command that concatenates lines in reverse, named by analogy with

cat 








The cat (''Felis catus'') is a  domestic species of small carnivorous mammal. It is the only domesticated species in the family Felidae and is commonly referred to as the domestic cat or house cat to distinguish it from the wild members of  ...

TAC (software) TAC is an open source instant messaging and chat client program written by AOL which uses the TOC protocol used by the AOL Instant Messenger system. It is written in Tcl, and is a command line client. It is a command line version of the GUI TiK cl ...

, an instant messaging and chat client program * TAC-2, game controller compatible with Atari 2600 video game systems *

Tantalum carbide Tantalum carbides (TaC) form a family of binary chemical compounds of tantalum and carbon with the empirical formula TaC''x'', where ''x'' usually varies between 0.4 and 1. They are extremely hard, brittle, refractory ceramic materials with metall ...

, TaC, its chemical formula * Terminal Access Controller, a host computer that accepts terminal connections * ''

Tetracaine Tetracaine, also known as amethocaine, is an ester local anesthetic used to numb the eyes, nose, or throat. It may also be applied to the skin before starting an intravenous (injection) to decrease pain from the procedure. Typically it is applied ...

, Adrenaline & Cocaine'', a liquid mixture sometimes given as a soothing gel to children *

Thermally Advantaged Chassis A Thermally Advantaged Chassis (TAC) is a computer enclosure that complies with the Thermally Advantaged Chassis specifications created by Intel. It is capable of maintaining an internal ambient temperature below 38 degrees Celsius when functioning ...

, an Intel computer specification *

Three-address code In computer science, three-address code (often abbreviated to TAC or 3AC) is an intermediate code used by optimizing compilers to aid in the implementation of code-improving transformations. Each TAC instruction has at most three operands and is ty ...

, a representation of intermediate code used by compilers * Time-activity curve, tracer concentration within a region of interest within dynamic image plotted over time * ''Tinned Annealed Copper'', a common type of

copper wire and cable Copper has been used in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s. The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor. Copper is the electri ...

* Total antioxidant capacity * Triacetyl cellulose, a polymer used in display applications *

Trigeminal autonomic cephalgia Trigeminal autonomic cephalalgia (TAC) is the name for a type of primary headache that occurs with pain on one side of the head in the trigeminal nerve area and symptoms in autonomic systems on the same side, such as eye watering and redness or d ...

Type Allocation Code The Type Allocation Code (TAC) is the initial eight- digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices. The Type Allocation Code identifies a particular model (and often revision) of wireless t ...

, part of a mobile device's IMEI identifying maker and model

Media

Group TAC was a Japanese animation and computer graphics studio located in Shibuya, Tokyo, and founded in 1968 from former Mushi Pro staff. They worked on movies, videos, TV shows, and commercials, and contributed to all stages of the process, including p ...

, a Japanese anime and computer graphics studio *

The Accessible Channel AMI-tv is a Television in Canada, Canadian, English-language, digital cable specialty channel owned by the non-profit organization Accessible Media. AMI-tv broadcasts a selection of general entertainment programming with accommodations for those w ...

, a Canadian digital television channel * ''

The American Conservative ''The American Conservative'' (''TAC'') is a magazine published by the American Ideas Institute which was founded in 2002. Originally published twice a month, it was reduced to monthly publication in August 2009, and since February 2013, it has ...

'', a paleoconservative magazine published by the American Ideas Institute

Other

* tac, the ISO 639-3 code for the

Tarahumara language The Tarahumara language (native name ''Rarámuri/Ralámuli ra'ícha'' "people language") is a Mexican indigenous language of the Uto-Aztecan language family spoken by around 70,000 Tarahumara (Rarámuri/Ralámuli) people in the state of Chihuah ...

spoken in the state of Chihuahua, Mexico * Terrible-Monster Attacking Crew, a fictional pilot squadron in ''

Ultraman Ace is the 5th show in the Ultra Series. Produced by Tsuburaya Productions, the series aired on Tokyo Broadcasting System from April 8, 1972, to March 30, 1973, with a total of 52 episodes. Starting from this show, the Ultra Series begins to shift f ...

'' * The Arts Centre or TAC, former name of

Home of the Arts, Gold Coast Home of the Arts (HOTA), opened as the Keith Hunt Community Entertainment and Arts Centre in 1986 and subsequently renamed The Arts Centre Gold Coast (TAC) and Gold Coast Arts Centre, is a cultural precinct situated in Surfers Paradise, City of ...

Total allowable catch The Common Fisheries Policy (CFP) is the fisheries policy of the European Union (EU). It sets quotas for which member states are allowed to catch each type of fish, as well as encouraging the fishing industry by various market interventions. I ...

, in commercial fishing under the European Union's Common Fisheries Policy