To amend title 39, United States Code, to allow postal patrons to contribute to funding for prostate cancer research through the voluntary purchase of certain specially issued United States postage stamps.

Requires the U.S. Postal Service to establish a special rate of postage for first-class mail that is equal to the regular rate plus a differential of not to exceed 25 percent to be offered as an alternative that patrons may use voluntarily to contribute to funding for prostate cancer research.

Requires the Service to pay 70 percent of the amounts attributable to such differential to the National Institutes of Health and 30 percent to the Department of Defense.

Requires the Postmaster General to include in each annual report to the Board of Governors information concerning the operation of this Act.

Terminates this Act two years after the date on which such stamps are first made available to the public.