; (3) providing new and existing facilities with equipment and infrastructure, including laboratory equipment, computer infrastructure and equipment, broadband infrastructure and equipment, library books, and furniture; and (4) property acquisition. . (i) Conforming amendment for the Navajo Tribe Section 114(a) of the Tribally Controlled Colleges and Universities Assistance Act of 1978 ( 25 U.S.C. 1814(a) ) is amended striking The Navajo and inserting Except as provided in sections 112 and 113, the Navajo . (j) Rules and regulations Section 115 of the Tribally Controlled Colleges and Universities Assistance Act of 1978 ( 25 U.S.C. 1815 ) is repealed. (k) Endowment grants Section 302 of the Tribally Controlled Colleges and Universities Assistance Act of 1978 ( 25 U.S.C. 1832 ) is amended by adding at the end the following: (c) The period of a grant under this section shall be not more than 20 years. During the grant period, an institution may withdraw and expend interest income generated by the endowment for any operating or academic purpose. An institution may not withdraw or expend any of the endowment fund corpus. After the termination of the grant period, an institution may use the endowment fund corpus for any operating or academic purpose. (d) (1) If at any time during the grant period an institution withdraws part of the endowment fund corpus, the institution shall repay to the Secretary an amount equal to 150 percent of the withdrawn amount. The Secretary may use up to 75 percent of such repaid funds to make additional endowment grants to, or to increase existing endowment grants at, other eligible institutions. (2) Notwithstanding subsection (c) and paragraph(1), the Secretary may allow an institution to expend part of the endowment fund corpus if the institution demonstrates such an expenditure is necessary because of— (A) a financial emergency, such as a pending insolvency or temporary liquidity problem; (B) a life-threatening situation occasioned by a natural disaster or arson