Bibliografía: p. 18-22

Language is a highly significant marker of individual and collective identities. It often provides an impulse for national or community affirmation and claims to self-government. Provisions to recognize and accommodate linguistic differences can be particularly salient in federations, many of which have highly diverse populations. Indeed, in quite a few cases linguistic diversity was one of the key reasons why federalism was central to a country’s founding framework or the result of its constitutional evolution.

Several federal countries have designated more than one language as official (or national) languages in the federal constitution and/or legislation. In turn, the constituent units (states, provinces, etc.) may accord a similar status to one or more languages. The different designations are not merely symbolic: they usually require or lead to policies, programs and other measures to govern language use. In some nonfederal states where more than one language is spoken, a measure of authority over language policy has sometimes been devolved to regional governments (or the equivalent).