Four-Stage Theory of the Republic of China its remaining major component – the island of Taiwan, as opposed to its decades-long claim to all China since losing the civil war in 1949. Prior to this speech, the government officials used "Republic of China" when the name of the state was used. Lee's usage is considered as a departure from the convention, as this usage can be interpreted in the sense that the Republic of China's sovereignty does not extend to mainland China, which the People's Republic of China controls. The Democratic Progressive Party's 1999 Resolution on Taiwan's Future, which is accorded equivalent status as the Party charter,
Taiwan Province, People's Republic of China refers to some ROC government offices and institutions using generic description which does not imply endorsement of the ROC's claim to be a legitimate government of either Taiwan or China. The precise replacements used are not officially designated, so the politically-designated names for Taiwan have small variations across different source from within the PRC. For some cases, where the name does not significantly imply sovereignty, the name remains the same, such as for the "Mainland Affairs Council", "County" and "Mayor". The PRC's current policy proposal for a potential future reunification with Taiwan includes a proposal for Taiwan to become a