PUBLIC LAW 103-124—OCT. 28, 1993 107 STAT. 1301 heading may be used to acquire through lease, purchase or other means an arctic research vessel. ACADEMIC RESEARCH INFRASTRUCTURE 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, $100,000,000, to remain available until September 30, 1995. UNITED STATES POLAR RESEARCH PROGRAMS For necessary expenses in carrying out arctic and antarctic research and operational support and for reimbursement to other Federal agencies for operational and science support and other related activities for the United States Antarctic program and the ^ctic research 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; $158,100,000, 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 none of the funds made availaole under this heading may be used to enter into a new charter or lease for the use of a research vessel refurbished or modernized in a foreign shipyard or of a newly-constructed research vessel built in a foreign shipyard. UNITED STATES ANTARCTIC LOGISTICAL SUPPORT ACTIVITIES 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); acquisition, maintenance, and operation of aircraft for research and operations support; improvement of environmental practices and enhancements of safety; $62,600,000, to remain available until expended: Provided, That receipts for support services and materials provided for non-Federal activities may oe credited to this appropriation. EDUCATION AND HUMAN RESOURCES For necessary expenses in carrying out science and engineering education and human resources programs and activities 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, $569,600,000, to remain available until September 30, 1995: Provided, That to the extent that the amount of this appropriation is less than the total amount authorized to be appropriated for included program activities, all amounts, including floors
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