PUBLIC LAW 102-154—NOV. 13, 1991 105 STAT. 1029 further, That no relocatee will be provided with more than one new or replacement home: Provided further, That the Office shall relocate any certified eligible relocatees who have selected and received an approved homesite on the Navajo reservation or selected a replacement residence off the Navajo reservation or on the land acquired pursuant to 25 U.S.C. 640d-10. INSTITUTE OF AMERICAN INDIAN AND ALASKA NATIVE CULTURE AND ARTS DEVELOPMENT PAYMENT TO THE INSTITUTE For payment to the Institute of American Indian and Alaska Native Culture and Arts Development, as authorized by Public Law 99-498, as amended (20 U.S.C. 56, part A), $6,612,000, of which not to exceed $350,000 for Federal matching contributions, to remain available until expended, shall be paid to the Institute endowment fund: Provided, That notwithstanding any other provision of law, the annual budget proposal and justification for the Institute shall be submitted to the Congress concurrently with the submission of the President's Budget to the Congress: Provided further. That the Institute shall act as its own certifying officer. SMITHSONIAN INSTITUTION SALARIES AND EXPENSES For necessary expenses of the Smithsonian Institution, as authorized by law, including research in the fields of art, science, and history; development, preservation, and documentation of the National Collections; presentation of public exhibits and performances; collection, preparation, dissemination, and exchange of information and publications; conduct of education, training, and museum assistance programs; maintenance, alteration, operation, lease (for terms not to exceed thirty years), and protection of buildings, facilities, and approaches; not to exceed $100,000 for services as authorized by 5 U.S.C. 3109; up to 5 replacement passenger vehicles; purchase, rental, repair, and cleaning of uniforms for employees; $283,961,000, of which not to exceed $25,839,000 for the instrumentation program, collections acquisition. Museum Support Center equipment and move, exhibition reinstallation, the National Museum of the American Indian, and the repatriation of skeletal remains program shall remain available until expended and, including such funds as may be necessary to support American overseas research centers and a total of $125,000 for the Council of American Overseas Research Centers: Provided, That funds appropriated herein are available for advance payments to independent contractors performing research services or participating in official Smithsonian presentations: Provided further. That none of the funds appropriated herein shall be made available for acquisition of land at the Smithsonian Environmental Research Center before the date of the enactment of an Act authorizing the use of funds for that purpose.