1992–present · Case 4 of 15
For most of a century Hong Kong ran on common law, a free port, and a press that printed what it found. When Britain returned the territory to China in 1997, the Sino-British Joint Declaration promised those arrangements would hold for fifty years under "one country, two systems." The United States wrote its own recognition of that promise into statute in 1992, before the handover had even happened.
The United States-Hong Kong Policy Act of 1992 treated Hong Kong as distinct from the mainland in trade, customs, currency and visas, on one condition: that Hong Kong remained sufficiently autonomous to justify it. The Act did not hand Hong Kong anything. It recognised what Hong Kong had already built, and made continued American treatment conditional on Beijing keeping its own promise.
Congress tightened the mechanism in November 2019, when it passed the Hong Kong Human Rights and Democracy Act. That law required the Secretary of State to certify Hong Kong's autonomy annually, and authorised sanctions and visa restrictions against officials responsible for eroding it. The certification requirement is what turned the 1992 Act from a one-time recognition into a standing test Beijing had to keep passing.
On 30 June 2020, China's National People's Congress Standing Committee imposed a National Security Law on Hong Kong directly, bypassing the territory's own legislature. The move violated the autonomy the Joint Declaration had promised through 2047.
The American response arrived within two weeks, not years. On 14 July 2020 the President signed the Hong Kong Autonomy Act, authorising sanctions on individuals and entities who had undermined Hong Kong's autonomy, and on the banks that did business with them. The same day, Executive Order 13936 ended Hong Kong's preferential trade treatment under the 1992 Act, following the Secretary of State's certification weeks earlier that Hong Kong no longer qualified.
The United States did not invent a new position in 2020. It executed a position written into law in 1992 and sharpened by Congress in 2019, the moment the fact pattern it had specified for three decades actually occurred. That is a government keeping a promise on autonomy rather than reacting to a headline, and it cost the United States real commercial access to a market American firms had operated in profitably for a century.
Sources: the United States-Hong Kong Policy Act of 1992 (Public Law 102-383); the Hong Kong Human Rights and Democracy Act of 2019; the National Security Law enacted by the Standing Committee of the National People's Congress, 30 June 2020; Executive Order 13936, 14 July 2020; the Hong Kong Autonomy Act, Public Law 116-149, signed 14 July 2020. This entry has not yet been checked against the full statutory text and the contemporaneous State Department certifications; treat the sequence of dates as reliable and any figure not shown here as not yet verified.