SEC. 7305. NATIONAL CAVE AND KARST RESEARCH INSTITUTE. The National Cave and Karst Research Institute Act of 1998 (16 U.S.C. 4310 note; Public Law 105–325) is amended by striking section 5 and inserting the following:“SEC. 5. AUTHORIZATION OF APPROPRIATIONS. “There are authorized to be appropriated such sums as are necessary to carry out this Act.” .