Supplementary agreement amending the agreement between the United States of America and the Republic of Austria on social security : message from the President of the United States transmitting a supplementary agreement amending the agreement between the United States of America and the Republic of Austria on social security (The "Supplementary Agreement"). Supplementary agreement, signed at Vienna on October 5, 1995, is intended to modify certain provisions of the original United States-Austria Social Security Agreement, signed July 13, 1990, pursuant to 42 U.S.C. 433(e)(1)