Flag of the Republic of China sovereign independent country of the Republic of China (ROC) to the island of Taiwan. On the mainland, the communist forces of Mao Zedong established the People's Republic of China and adopted their own national flag. On October 23, 1954, the National Emblem and National Flag of the Republic of China Act () was promulgated by the Legislative Yuan to specify the size, measure, ratio, production, and management of the flag. While public display of the ROC flag is generally frowned upon, and may even lead to arrest in the PRC, Cambodia was the first country to outlaw it officially. In
Mainland China has been in mainstream use and usually has no particular political connotations, since generations born after the takeover were taught that Taiwan is part of Republic of China, and so is mainland China, and that they are "Chinese". Government organizations and official and legal documents in Taiwan, including the Republic of China Constitution also use "the mainland" to refer to mainland China, since the ROC government has never recognized the founding of the PRC and because its Constitution does not allow the existence of another state within its territory, constitutional amendments made in the 1990s had to refer to the