Uniform Title Treaties, etc. United States, 1980 September 17. Protocols, etc., 1996 February 16 Title Aviation [electronic resource] : transport services : agreements amending the agreement of September 17, 1980 between the United States of America and China, as amended, effected by exchange of notes at Beijing, February 16 and March 27, 1996 and protocol signed at Washington, April 8, 1999, and protocol signed at Beijing, July 24, 2004, and protocol signed at Seattle, July 9, 2007.