; and (2) submit such final report to the committees specified in such subsection. (h) Definitions In this section: (1) The terms Indian Tribe and Tribal organization have the meanings given to such terms in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 ). (2) The term Urban Indian organization has the meaning given to such term in section 4 of the Indian Health Care Improvement Act ( 25 U.S.C. 1603 ). (i) Authorization of appropriations There is authorized to be appropriated to carry out this section $25,000,000, to remain available until expended. 1109. Research endowments at both current and former centers of excellence Paragraph (1) of section 464z–3(h) of the Public Health Service Act ( 42 U.S.C. 285t(h) ) is amended to read as follows: (1) In general The Director of the Institute may carry out a program to facilitate minority health disparities research and other health disparities research by providing for research endowments— (A) at current or former centers of excellence under section 736