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

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

Repeals the limitation of such authority to cities and counties with 500 or more persons regularly employed by all agencies of the Federal Government (thus authorizing the Secretary to enter into such agreements with cities and counties with fewer than 500 Federal employees).