; and (II) ensure that each State receives not less than 1 percent of the amounts made available to carry out this section for a fiscal year. (iii) Allotments for Indian tribes In developing the formula required under subparagraph (A) for the allotments described in clause (i)(II)(aa), the Administrator shall provide 2 percent of the amounts made available to carry out this section for a fiscal year to Indian tribes. (iv) Allotments for United States territories In developing the formula required under subparagraph (A) for the allotments described in clause (i)(II)(bb), the Administrator shall provide 1.5 percent of the amounts made available to carry out this section for a fiscal year to United States territories. (v) Buy American oversight In developing the formula required under subparagraph (A) for the allotments described in clause (i)(II)(cc), the Administrator shall ensure that 0.1 percent of the amounts made available to carry out this section for a fiscal year are used for Buy American oversight. (C) Timeline (i) Initial formula The Administrator shall develop the initial formula required under subparagraph (A) by not later than September 30, 2028, to ensure that the formula is in effect for fiscal year 2029. (ii) Updates required After developing the formula required under subparagraph (A) by the date described in clause (i), the Administrator shall update that formula by not later than the date that is 1 year after the date on which the Administrator submits a new clean watersheds needs survey to Congress. (4) Savings provision To the extent practicable, the Administrator shall continue developing the allotment formula under paragraph (2) until the date on which the Administrator submits to Congress a new clean watersheds needs survey for purposes of the formula required under paragraph (3)(A). . (b) No effect on infrastructure funds Nothing in this section or an amendment made by this section affects— (1) amounts made available to carry out section 205 of the Federal Water Pollution Control Act ( 33