; (ii) the projects denied a grant under paragraph (1); and (iii) for the projects described in clause (ii), a description of the reasons for which each project was denied a grant. (6) Authorization of appropriations (A) In general There is authorized to be appropriated to carry out this subsection $25,000,000 for the period of fiscal years 2024 through 2028, to remain available until expended. (B) Set-asides (i) Rural communities Of the amounts made available under subparagraph (A), the Administrator shall use not more than 25 percent to make grants to owners and operators of community water systems that serve a population of not more than 10,000 individuals. (ii) Tribal communities Of the amounts made available under subparagraph (A), the Administrator shall use not less than 10 percent to make grants to owners and operators of community water systems that serve Indian Tribes. .