; (B) in each of the fifth and sixth year of participation in the program, an amount equal to 50 percent of the amount such entity received under subsection (a) with respect to such year; (C) in each of the seventh and eighth year of participation in the program, an amount equal to 75 percent of the amount such entity received under subsection (a) with respect to such year; and (D) in each ninth year and each subsequent year thereafter of participation in the program, an amount equal to 100 percent of the amount such entity received under subsection (a) with respect to such year. (2) Exception for certain Indian Tribes The Secretary may waive the matching fund requirements under paragraph (1) in the case of an eligible entity that is an Indian tribe if at least 75 percent of the students at the institutions of higher education operated or controlled by such Indian tribe are low-income students. (3) Reallotment If an eligible entity returns to the Secretary any portion of the sums allocated to such eligible entity under this section for any fiscal year, the Secretary shall reallot such excess as part of the available appropriated amount for the succeeding fiscal year. (c) Supplement, not supplant Grant funds awarded under this subpart shall be used to supplement, and not supplant, other Federal, State, and local funds that would otherwise be expended to carry out activities assisted under this subpart. (d) Limitation An eligible entity may only participate in the program under this subpart in a year in which such entity receives a grant under subpart 1. 499J. Applications (a) In general To be eligible to participate in the program under this subpart, an eligible entity shall submit an application to the Secretary at such time, in such manner, and containing such information as the Secretary may require, including— (1) a plan that includes— (A) the amount of funds requested by the eligible entity under this subpart and the intended use of such funds