; bears to (ii) the total population of all States. (D) Allotments to Indian tribes For each of fiscal years 2024 through 2028, of the amounts made available to carry out this section for a fiscal year, the Administrator shall provide an allotment of 2 percent to Indian tribes. (E) Allotments to United States territories For each of fiscal years 2024 through 2028, of the amounts made available to carry out this section for a fiscal year, the Administrator shall provide an allotment of 1.5 percent to United States territories. (3) Subsequent fiscal years (A) In general For fiscal year 2029 and each fiscal year thereafter, in allotting amounts made available to carry out this section for a fiscal year, the Administrator shall use an updated allotment formula consistent with subparagraph (B). (B) Formula (i) Development The Administrator shall, by regulation, develop a formula— (I) for the calculation of allotments of amounts made available to carry out this section for a fiscal year to States in accordance with clause (ii); and (II) that includes allotments of amounts made available to carry out this section for a fiscal year— (aa) to provide to Indian tribes in accordance with clause (iii); (bb) to provide to United States territories in accordance with clause (iv); and (cc) for Buy American oversight in accordance with clause (v). (ii) Allotments for States In developing the formula required under subparagraph (A) for the allotments described in clause (i)(I), the Administrator shall— (I) base the formula on the needs of the States, as identified in the most recently available clean watersheds needs survey