42 U.S.C. § 4655
(a) Notwithstanding any other law, the head of a Federal agency shall not approve any program or project or any grant to, or contract or agreement with, an acquiring agency under which Federal financial assistance will be available to pay all or part of the cost of any program or project which will result in the acquisition of real property on and after , unless he receives satisfactory assurances from such acquiring agency that—
(b) For purposes of this section, the term “acquiring agency” means—
(Pub. L. 91–646, title III, § 305, , 84 Stat. 1906; Pub. L. 100–17, title IV, § 417, , 101 Stat. 256.)
1987—Pub. L. 100–17 designated existing provisions as subsec. (a), substituted “an acquiring agency” for “a State agency” and “such acquiring agency” for “such State agency”, and added subsec. (b).
Amendment by Pub. L. 100–17 effective on effective date provided in regulations promulgated under section 4633 of this title (as amended by section 412 of Pub. L. 100–17), but not later than 2 years after , see section 418 of Pub. L. 100–17, set out as a note under section 4601 of this title.