<P> The ideas behind MFN policies can first be seen in US foreign policy during the opening of Japan in the mid to late 1850s, when they were included as a clause in the Commercial Treaty of 1858, which signalled the opening of the Japanese market . </P> <P> Since 1998, the term normal trade relations (NTR) has replaced most favoured nation in all U.S. statutes . This change was included in section 5003 of the Internal Revenue Service Restructuring and Reform Act of 1998 (P.L. 105 - 206). However, Title IV of the Trade Act of 1974 (P.L. 93 - 618) established conditions on U.S. MFN / NTR tariff treatment to certain non-market economies, one of which is certain freedom - of - emigration requirements (better known as the Jackson - Vanik amendment). The act authorizes the president to waive a country's full compliance with Jackson - Vanik under specified conditions, and this must be renewed by June 3 of each year . Once the president does so, the waiver is automatic unless Congress passes (and avoids or overturns a presidential veto of) a disapproval resolution . </P> <P> MFN / NTR status for China, a non-market economy, which had been originally suspended in 1951, was restored in 1980 and was continued in effect through subsequent annual Presidential extensions . Following the massacre of pro-democracy demonstrators in Tiananmen Square in 1989, however, the annual renewal of China's MFN status became a source of considerable debate in the Congress; and legislation was introduced to terminate China's MFN / NTR status or to impose additional conditions relating to improvements in China's actions on various trade and non-trade issues . Agricultural interests generally opposed attempts to block MFN / NTR renewal for China, contending that several billion dollars annually in current and future U.S. agricultural exports could be jeopardized if that country retaliated . In China's case, Congress agreed to permanent normal trade relations (PNTR) status in P.L. 106 - 286, President Clinton signed into law on October 10, 2000 . PNTR paved the way for China's accession to the WTO in December 2000; it provides U.S. exporters of agricultural products the opportunity to benefit from China's WTO agreements to reduce trade barriers and open its agricultural markets . </P> <P> MFN status to Pakistan, Bangladesh and Vietnam, but review on withdrawal MFN status of Pakistan . </P>

When did china receive most favored nation status