A bill to extend the authority of the Secretary of the Treasury to enter into agreements with certain cities and counties for withholding of city and county income and employment taxes from pay of Federal employees who are residents of, or regularly employed in, such cities and counties.

Amends the definitions of "city" and "county" for purposes of the withholding of city or county income or employment taxes from Federal employees residing in or employed in such cities and counties under agreements between the Secretary of the Treasury and the city or county. Eliminates the requirement that there be 500 or more persons regularly employed by all agencies of the Federal Government in such city or county before an agreement can be entered into.