PUBLIC LAW 102-139—OCT. 28, 1991 105 STAT. 773 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; $1,879,000,000, to remain available until September 30, 1993: 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. 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 Columbia, $33,000,000, to remain available until September 30, 1993. UNITED STATES ANTARCTIC RESEARCH ACTIVITIES For necessary expenses in carrying out the research and operational support 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 passenger motor vehicles; not to exceed $2,500 for official reception and representation expenses; $78,000,000, to remain available until expended: Provided, That receipts for support services and materials provided for non-Federal activities may be credited to this appropriation: Provided further. That no funds in this account shall be used for the purchase of aircraft other than ones transferred from other Federal agencies. UNITED STATES ANTARCTIC LOGISTICAL SUPPORT ACTIVITIES (INCLUDING TRANSFER OF FUNDS) For necessary expenses in reimbursing 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; maintenance and operation of research ships and charter or lease of ships for research and operations support; hire of passenger motor vehicles; not to exceed $10,000,00(), to remain available until expended: Provided, That receipts for support services and materials provided for non-Federal activities may be credited to this appropriation: Provided further, That up to $9,000,000 may be transferred to and merged with funds made available under "United States Antarctic Research Activities": Provided further. 49-194O-92-26:QL.3Part 1
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