TOC
# TOC

Toc or TOC may refer to:

## Documents

* Table of contents found at the beginning of a book or document

## Organizations

* Transnational organized crime
* Thomson Corporation, by ticker symbol on the New York and Toronto Stock Exchanges
* The Objectivist Center, part of The Atlas Society
* Tactical operations center, for police, paramilitary, or military operations
* Taste of Chaos, a winter/spring concert series
* Tournament of Champions (debate), a high school debate tournament
* Train operating company in the UK
* Town of Cambridge Perth, Western Australia

## Places

* Monte Toc, Italy, site of a major landslide
* Toc, a village in Săvârșin Commune, Arad County, Romania
* Town Centre stop, a Light Rail stop in Hong Kong, by MTR station code

## Science and technology

* TOC protocol, an instant message communications protocol
* Translocon at the outer membrane of chloroplast, in beta barrel
* Total organic carbon in an organic compound
* TOC1 (gene), a gene that regulates circadian rhythm in plants
* Theory of computation in computer science
* Transmission oil cooler, a secondary function (or specialized type) of radiator (engine cooling)

## Mathematics

* Total operating characteristic, a statistical method to compare a boolean variable and a rank variable

## Other

* "T", in the World War I Western Front "signalese" and the RAF phonetic alphabet
* Teacher on call, a substitute teacher
* Theory of constraints, a management paradigm
* Theory of change, a methodology to promote social change
* Top of climb, in aviation
* Train operating company
