(a) The United States Governor is hereby authorized to agree on behalf of the United States to pay to the Association four annual installments of $375,000,000 each as the United States contribution to the Fourth Replenishment of the Resources of the Association.

(b) In order to pay for the United States contribution, there is hereby authorized to be appropriated without fiscal year limitation four annual installments of $375,000,000 each for payment by the Secretary of the Treasury.