113 STAT. 1090 PUBLIC LAW 106-74—OCT. 20, 1999 Domain name. costs associated with personnel relocation, and for other services, to be provided during the next fiscal year. Unless otherwise provided for in this Act or in the joint explanatory statement of the committee of conference accompanying this Act, no part of the funds appropriated for "Human space flight" may be used for the development of the International Space Station in excess of the amounts set forth in the budget estimates submitted as part of the budget request for fiscal year 2000. NATIONAL CREDIT UNION ADMINISTRATION CENTRAL LIQUIDITY FACILITY During fiscal year 2000, administrative expenses of the Central Liquidity Facility shall not exceed $257,000: Provided, That $1,000,000, together with amounts of principal and interest on loans repaid, to be available until expended, is available for loans to community development credit unions. NATIONAL SCIENCE FOUNDATION RESEARCH AND RELATED ACTIVITIES For necessary expenses in carrying out the National Science Foundation Act of 1950, as amended (42 U.S.C. 1861-1875), and the Act to estabhsh a National Medal of Science (42 U.S.C. 1880- 1881); services as authorized by 5 U.S.C. 3109; maintenance and operation of aircraft and purchase of flight services for research support* acquisition of aircraft; $2,966,000,000, of which not to exceed $253,000,000 shall remain available until expended for Polar research and operations support, and for reimbursement to other Federal agencies for operational and science support and logistical and other related activities for the United States Antarctic program; the balance to remain available until September 30, 2001: Provided, That receipts for scientific support services and materials furnished by the National Research Centers and other National Science Foundation supported research facilities may be credited to this appropriation: Provided further. That to the extent that the amount appropriated is less than the total amount authorized to be appropriated for included program activities, all amounts, including floors and ceilings, specified in the authorizing Act for those program activities or their subactivities shall be reduced proportionally: Provided further, That $60,000,000 of the funds available under this heading shall be made available for a comprehensive research initiative on plant genomes for economically significant crop: Provided further. That none of the funds appropriated or otherwise made available to the National Science Foundation in this or any prior Act may be obligated or expended by the National Science Foundation to enter into or extend a grant, contract, or cooperative agreement for the support of administering the domain name and numbering system of the Internet after September 30, 1998: Provided further. That no funds in this or any other Act shall be used to acquire or lease a research vessel with ice-breaking capability built or retrofitted by a shipyard located in a foreign country if such a vessel of United States origin can be obtained at a cost no more than 50 per centum above that of the least expensive technically acceptable foreign vessel bid: Provided further, That, in determining the cost of such a vessel, such cost be increased
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