Social Security for Americans Only Act of 2003

Social Security for Americans Only Act of 2003 - Amends title II (Old Age, Survivors and Disability Insurance) (OASDI) of the Social Security Act (SSA) to: (1) prohibit the wages earned, and self-employment income derived, by individuals who are not citizens or nationals of the United States from being credited for coverage under the OASDI program; and (2) provide the President with authority to enter into agreements with other nations taking into account such limitation on crediting of wages and self-employment.