National language
Mandarin is the most common language used in government. After World War II the mainland Chinese-run government made Mandarin the official language, and it was used in the schools and in government. Under the "National languages development act", political participation can be conducted in any national language, which is defined as a "natural language used by an original people group of Taiwan", which also includes Formosan languages, Hakka and Taiwanese Hokkien. According to Taiwan's Legislative Yuan, amendments were made to the Hakka Basic Act to make Hakka an official language of Taiwan.