Official bilingualism refers to the policy adopted by some states

State (polity)

A state is an organized political community, living under a government. States may be sovereign and may enjoy a monopoly on the legal initiation of force and are not dependent on, or subject to any other power or state. Many states are federated states which participate in a federal union...

 of recognizing two language

Language

Language may refer either to the specifically human capacity for acquiring and using complex systems of communication, or to a specific instance of such a system of complex communication...

s as official

Official language

An official language is a language that is given a special legal status in a particular country, state, or other jurisdiction. Typically a nation's official language will be the one used in that nation's courts, parliament and administration. However, official status can also be used to give a...

 and producing all official documents, and handling all correspondence

Communication

Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

 and official dealings, including Court

Court

A court is a form of tribunal, often a governmental institution, with the authority to adjudicate legal disputes between parties and carry out the administration of justice in civil, criminal, and administrative matters in accordance with the rule of law...

 procedure, in the two said languages. It is destinct from personal bilingualism, the capacity of a person to speak two languages.

Canada

In Canada English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 and French

French language

French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

  have special legal status over other languages in Canada’s courts, parliament

Parliament of Canada

The Parliament of Canada is the federal legislative branch of Canada, seated at Parliament Hill in the national capital, Ottawa. Formally, the body consists of the Canadian monarch—represented by her governor general—the Senate, and the House of Commons, each element having its own officers and...

 and administration.
At the provincial level, New Brunswick

New Brunswick

New Brunswick is one of Canada's three Maritime provinces and is the only province in the federation that is constitutionally bilingual . The provincial capital is Fredericton and Saint John is the most populous city. Greater Moncton is the largest Census Metropolitan Area...

 is the only official bilingual province and only Quebec

Quebec

Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

 is officially unilingual (French only). In practice, all provinces, including Quebec, offer some bilingual services and some education in both official languages up to the high school level. English and French are official languages in all three territories (because they are federally administered). In addition, Inuktitut

Inuktitut

Inuktitut or Eastern Canadian Inuktitut, Eastern Canadian Inuit language is the name of some of the Inuit languages spoken in Canada...

 is also an official language in Nunavut

Nunavut

Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...

, and nine aboriginal languages have official status in the Northwest Territories

Northwest Territories

The Northwest Territories is a federal territory of Canada.Located in northern Canada, the territory borders Canada's two other territories, Yukon to the west and Nunavut to the east, and three provinces: British Columbia to the southwest, and Alberta and Saskatchewan to the south...

.

Finland

In Finland, Finnish

Finnish language

Finnish is the language spoken by the majority of the population in Finland Primarily for use by restaurant menus and by ethnic Finns outside Finland. It is one of the two official languages of Finland and an official minority language in Sweden. In Sweden, both standard Finnish and Meänkieli, a...

 and Swedish

Swedish language

Swedish is a North Germanic language, spoken by approximately 10 million people, predominantly in Sweden and parts of Finland, especially along its coast and on the Åland islands. It is largely mutually intelligible with Norwegian and Danish...

 are both considered "national languages". Municipalities of Finland are divided into three categories; unilingual Swedish, unilingual Finnish or bilingual. Finnish is the maternal language of about 90% of the population, and the bilingual or swedophone population is concentrated to the coastal areas of Ostrobothnia

Ostrobothnia (region)

Ostrobothnia is a region of Finland. It is located in Western Finland. It borders the regions Central Ostrobothnia, Southern Ostrobothnia, and Satakunta and is one of the four regions making up the historical province of Ostrobothnia....

 and Finland Proper

Finland Proper

Finland Proper or Southwest Finland , is a region in south-western Finland. It borders the regions of Satakunta, Tavastia Proper, Ahvenanmaa and Uusimaa.- Municipalities :...

. The autonomous province of Åland is officially unilingual (Swedish). Both Swedish and Finnish are compulsory school subjects.