TDA may refer to:

Finance

* Tax deferred annuity, a type of retirement plan under IRC Section

403(b) In the United States, a 403(b) plan is a U.S. tax-advantaged retirement savings plan available for public education organizations, some non-profit employers (only Internal Revenue Code 501(c)(3) organizations), cooperative hospital service organiza ...

* Time deposit account *

TreasuryDirect TreasuryDirect is a website run by the Bureau of the Fiscal Service under the United States Department of the Treasury that allows US individual investors to purchase treasury securities, such as savings bonds, directly from the US government ...

account, an account used to buy securities from the US Treasury * "Treasury Direct Account," a fraud scheme promoted in the

redemption movement The redemption movement is a debt-resistance movement and fraud scheme which is primarily active in the United States and Canada. Participants allege that a secret fund is created for every citizen at birth, and that a procedure exists to "redee ...

Organizations

Tautinio Darbo Apsaugos Batalionas The Lithuanian TDA Battalions ( lt, Tautinio darbo apsaugos batalionas) or TDA, were paramilitary units organized in June–August 1941 by the Provisional Government of Lithuania at the onset of Operation Barbarossa. Members of the TDA were known b ...

, auxiliary police unit In Lithuania in 1941 * Team Disney Anaheim, the administrative headquarters of the Disneyland Resort in California * Télédiffusion d'Algérie, an Algerian public service broadcasting and internet service provider *

Texas Department of Agriculture The Texas Department of Agriculture (TDA) is a state agency within the state of Texas, which is responsible for matters pertaining to agriculture, rural community affairs, and related matters. It is currently headed by Agriculture Commissioner S ...

Thomas Deacon Academy The Thomas Deacon Academy is a mixed gender academy complex in the north of Peterborough, Cambridgeshire, comprising the Thomas Deacon Academy Secondary School and sixth form and The Junior Academy for Key Stage 2 students. Thomas Deacon Acade ...

, a city academy in Peterborough * Toa Domestic Airlines, later known as Japan Air System *

Tournament Directors Association {{Unreferenced, date=February 2010 In the game of poker, the tournament director (TD) is the individual charged with running the poker tournament. The job encompasses many roles, the most public of which is typically announcing the phrase "shuffle ...

, an organization that works to standardize poker tournament rules worldwide *

United States Trade and Development Agency The U.S. Trade and Development Agency (USTDA) is an independent agency of the United States government, formed in 1992 to advance economic development and U.S. commercial interests in developing and middle income countries. Structure The U.S. ...

Training and Development Agency for Schools The Training and Development Agency for Schools (TDA) was a body responsible for the initial and in-service training of teachers and other school staff in England. It was an executive non-departmental public body of the Department for Education. ...

in the UK

Television

The Disney Afternoon The Disney Afternoon (later known internally as the Disney-Kellogg Alliance when unbranded), sometimes abbreviated as TDA, was a created-for-syndication two-hour programming block of animated television series. It was produced by Walt Disney T ...

, a two-hour television programming block * ''

Total Drama Action ''Total Drama Action'' (abbreviated ''TDA'') is a Canadian animated television series. It is the second season of ''Total Drama''. The show premiered on Teletoon at 6:30pm ET/ PT on January 11, 2009. This season was also created by the makers of ...

'', the second season of ''Total Drama''

Other

* TDA, ISO 639-3 code for the

Gadal language Tagdal (Tuareg name: ''Tagdalt'') is a mixed Northern Songhay language of central Niger. Ethnologue considers it a "mixed Berber–Songhay language", while other researchers consider it Northern Songhay. There are two dialects: Tagdal proper ...

Taking and driving away In England, Wales and Northern Ireland taking without owner's consent (TWOC), also referred to as unauthorised taking of a motor vehicle (UTMV) describes any unauthorised use of a car or other conveyance that does not constitute theft. A similar of ...

, a term for auto theft under Scottish law * Tamm–Dancoff approximation, a method used in

many-body theory The many-body problem is a general name for a vast category of physical problems pertaining to the properties of microscopic systems made of many interacting particles. ''Microscopic'' here implies that quantum mechanics has to be used to provid ...

Temporary duty assignment Temporary duty travel (TDY), also known as temporary additional duty (TAD), is a designation reflecting a United States Armed Forces service member's—or civilian Department of Defense employee's—travel or other assignment at a location other t ...

, a United States Government employee travel assignment *

Toluenediamine Toluenediamine may refer to these isomeric organic compounds with the formula C6H3(NH2)2(CH3): *2,4-Diaminotoluene, precursor to toluene diisocyanate and azo dye Azo dyes are organic compounds bearing the functional group R−N=N−R� ...

Topological data analysis In applied mathematics, topological based data analysis (TDA) is an approach to the analysis of datasets using techniques from topology. Extraction of information from datasets that are high-dimensional, incomplete and noisy is generally challengin ...

* Tornado detection algorithm, the replacement of the

tornado vortex signature A tornadic vortex signature, abbreviated TVS, is a Pulse-Doppler radar weather radar detected rotation algorithm that indicates the likely presence of a strong mesocyclone that is in some stage of tornadogenesis. It may give meteorologists the abil ...

(TVS) * Traditional double action, a style of semi-automatic pistol action, also known as

DA/SA A trigger is a mechanism that actuates the function of a ranged weapon such as a firearm, airgun, crossbow, or speargun. The word may also be used to describe a switch that initiates the operation of other non-shooting devices such as a trap, ...

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