Uniform Title Treaties, etc. United States, 1996 Oct. 2. Protocols, etc., 2009 Sept. 23-2010 Nov. 16 Title Protocol amending tax convention with Swiss Confederation : message from the President of the United States transmitting Protocol Amending the Convention between the United States of America and the Swiss Confederation for the Avoidance of Double Taxation with Respect to Taxes on Income, signed at Washington on October 2, 1996.