With respect to any funds reallocated under section
1070b–3
(d) of this title, section
2752
(d) of title
42, or section
1087bb
(i) of this title, the Secretary shall reallocate such funds at any time during the course of the year that will best meet the purpose of the programs under subpart 3 of part A of this subchapter, part
C of subchapter
I of chapter
34 of title
42, and part D of this subchapter, respectively. However, such reallocation shall occur at least once each year, not later than September 30 of that year.