Quick search by citation:

42 U.S. Code § 4125 - Finality of certain financial transactions

Notwithstanding the provisions of any other law—
(1)
any financial transaction authorized to be carried out under this chapter, and
(2)
any payment authorized to be made or to be received in connection with any such financial transaction,
shall be final and conclusive upon all officers of the Government.
Editorial Notes
References in Text

This chapter, referred to in par. (1), was in the original a reference to “this title” meaning title XIII of Pub. L. 90–448, Aug. 1, 1968, 82 Stat. 572, known as the National Flood Insurance Act of 1968, which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 4001 of this title and Tables.

Statutory Notes and Related Subsidiaries
Effective Date

Section effective 120 days following Aug. 1, 1968, or such later date prescribed by the Secretary but in no event more than 180 days following Aug. 1, 1968, see section 1377 of Pub. L. 90–448, set out as a note under section 4001 of this title.