1987—Pub. L. 100–17 in introductory provisions substituted “displacing agency (other than a Federal agency)” for “State agency” and “assurances from such displacing agency” for “assurances from such State agency”, and in par. (3) substituted “comparable replacement dwellings” for “decent, safe, and sanitary replacement dwellings”.

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 Apr. 2, 1987, see section 418 of Pub. L. 100–17, set out as a note under section 4601 of this title.

Section as completely applicable to all States after July 1, 1972, but until such date applicable to a State to extent the State is able under its laws to comply with this section, see section 221(b) of Pub. L. 91–646, set out as a note under section 4601 of this title.