31 U.S.C. § 6309
(a) In General.— Beginning on the date of enactment of the MAPS Act of 2021, and notwithstanding any other provision of law, any change to the standards of core-based statistical area delineations pursuant to section 3504(e) of title 44—
(1) shall not propagate automatically for any non-statistical use by any domestic assistance program, including any such use as required through—
(2) shall propagate for any non-statistical use by any domestic assistance program only—
(A) if a relevant agency determines that such a propagation—
(Added Pub. L. 117–219, § 5(a), , 136 Stat. 2272.)
The date of enactment of the MAPS Act of 2021, referred to in subsec. (a), is the date of enactment of Pub. L. 117–219, which was approved .
Section 4 of the MAPS Act of 2021, referred to in subsec. (b), is section 4 of Pub. L. 117–219, which is set out as a note under section 6102 of this title.