The United States Governor is hereby authorized (1) to vote in favor of the second replenishment resolutions providing for an increase in the resources of the Association, and (2) to agree on behalf of the United States to contribute to the Association the sum of $480,000,000, as recommended by the Executive Directors in a report dated March 8, 1968, to the Board of Governors of the Association. There is hereby authorized to be appropriated, without fiscal year limitation, $480,000,000 for payment by the Secretary of the Treasury of the United States share of the increase in the resources of the Association.