Latvian language
Upper Latvian dialect is spoken in Eastern Latvia. It is set apart from rest of the Latvian by number of phonetic differences. The dialect has two main varieties – Selonian and Non-Selonian. There is a standard language, the Latgalian language, which is based on deep Non-Selonian varieties spoken in south of Latgale. The term "Latgalian" is sometimes also applied to all Non-Selonian varieties or even the whole dialect. However, it is unclear if it is accurate to use the term for any varieties besides the standard language. While the term may refer to varieties spoken in Latgale or by Latgalians, not all speakers identify as speaking Latgalian, for example, speakers of deep Non-Selonian varieties in Vidzeme explicitly deny speaking Latgalian.
Language policy in Latvia
Before the losses of the Latvian government in the cases "Podkolzina v. Latvia" (ECHR) and "Ignatāne v. Latvia" (UN HRC), a certain level of command in Latvian was asked for eligibility to Parliament and local councils. In practice, this had led to re-examinations of various candidates, at least sometimes unexpected, which prevented Ignatāne and Podkolzina (representatives of the Equal Rights party in the 1997 local and 1998 parliamentary elections) from participation. As of 2011, candidates do not need to prove language proficiency, but elected members of Saeima and local councilors can be deprived of mandate for insufficient command of Latvian.