The Association of Translators and Interpreters of Ontario (ATIO) is the oldest organization of translators, conference interpreters, court interpreters and terminologists in Canada. It was founded in 1920 as the Association technologique de langue française d’Ottawa, and was incorporated the following year under Ontario Letters Patent. In 1962 the Association adopted its current name. ATIO is also the first translators’ association in the world whose certified members are deemed professionals by law, for in February 1989 the Province of Ontario granted a reserved title for certified members of ATIO through the Association of Translators and Interpreters Act, 1989.