The Temporary Provisions Effective During the Period of National Mobilization for Suppression of the Communist Rebellion were provisions of the Constitution of the Republic of China effective from 1948 to 1991 and amended four times by the Central Government of China. They effectively nullified the constitution and established martial law in Taiwan, where civil and political freedoms were curtailed. The official rationale for the provisions was the ongoing Chinese Civil War, but with the demise of the Kuomintang single-party system, the provisions were repealed.