Quick search by citation:

22 U.S. Code § 284n - Fifth replenishment; authorization of appropriations

(a)
The United States Governor is authorized to agree on behalf of the United States to pay to the Association $2,400,000,000 as the United States contribution to the fifth replenishment of the Resources of the Association: Provided, however, That any commitment to make such contributions shall be made subject to obtaining the necessary appropriations.
(b)
In order to pay for the United States contribution provided for in this section, there are authorized to be appropriated, without fiscal year limitation, $2,400,000,000 for payment by the Secretary of the Treasury.
Statutory Notes and Related Subsidiaries
Effective Date

Section effective Oct. 3, 1977, except that no funds authorized to be appropriated by this section may be available for use or obligation prior to Oct. 1, 1977, see section 1001 of Pub. L. 95–118, set out as a note under section 282i of this title.