PUBLIC LAW 102-389—OCT. 6, 1992 106 STAT. 1611 Central Liquidity Facility in fiscal year 1993 shall not exceed $964,000. NATIONAL SCIENCE FOUNDATION RESEARCH AND RELATED ACTIVITIES For necessary expenses in carrying out the purposes of the National Science Foundation Act of 1950, as amended (42 U.S.C. 1861-1875), and the Act to establish 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 piu*chase of flight services for research support; acquisition of aircreift; $1,859,000,000, to remain avedlable until September 30, 1994: 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 notwithstanding section 104 of the National Science Foundation Authorization Act of 1988 (Public Law 100-570), no funds appropriated to the National Science Foundation under this Act may be transferred among appropriations accounts: 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 no funds in this Act or any other Act shall be used to lease or purchase an arctic research vessel built 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 centuni above that of the least expensive technically acceptable foreign vessel bid: Provided further, That, in determining the cost of such a vessel, such cost shall be increased by the amount of any subsidies or financing provided by a foreign government (or instrumentality thereof) to such vessel's construction: Provided further. That the Maritime vessel contracted for pursuant to the foregoing shall be of United contracts States registry. ACADEMIC RESEARCH FACILITIES AND INSTRUMENTATION For necessary expenses in carrying out an academic research facilities and instrumentation program pursuant to the purposes of the National Science Foundation Act of 1950, as amended (42 U.S.C. 1861-1875), including services as authorized by 5 U.S.C. 3109 and rental of conference rooms in the District of Colimibia, $50,000,000, to remain available until September 30, 1994. UNITED STATES ANTARCTIC RESEARCH ACTIVITIES For necessary expenses in carrying out the research and operational support and for reimbursement to other Federal agencies for logistical and other related activities for the United States Antarctic Program pursuant to the National Science Foundation Act of 1950, as amended (42 U.S.C. 1861-1875); maintenance and operation of aircraft and purchase of flight services for research and operations support; improvement of environmental practices and enhancements of safety; services as authorized by 5 U.S.C. 3109; maintenance and operation of research ships and charter or lease of ships for research and operations support; hire of pas-
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