Charter of the French Language with the adoption of the "Official Language Act" in 1974. Quebec is constitutionally obliged nonetheless to provide English services in the courts and the National Assembly of Quebec (see below). The fundamental French language rights in Quebec are: French is the declared language of the legislature and courts in Quebec. Section 133 of the "Constitution Act, 1867", still in effect, nonetheless requires that bills be printed, published, passed, and assented to in French and in English in Parliaments and the legislatures of Canada and of Quebec. French or English may be used by any person before the courts of Quebec.
Section 16 of the Canadian Charter of Rights and Freedoms itself to be officially bilingual, New Brunswick is the only province to have its bilingualism guaranteed by section 16. When Manitoba's laws declaring English to be the only official language of the province were found to be invalid in "Re Manitoba Language Rights" (1985), this was due to its contradictions with the "Manitoba Act". Subsection 16(3) provides that a Parliament or provincial government may strive for progress in official bilingualism. This reflects a 1975 court decision, "Jones v. Attorney General of New Brunswick", in which it was found governments may do this. Thus, the Supreme Court in "Société des Acadiens"