There are hereby authorized to be appropriated such sums as may be necessary to carry out the purposes of sections
459j to
459j–8 of this title, but not more than $7,941,000 for the acquisition of lands and interests in lands. In order to avoid excessive costs resulting from delays in the acquisition program, the Secretary shall make every reasonable effort to promptly acquire the privately owned lands within the seashore. Until all such lands are acquired, he shall report, in writing on June 30 of each year to the Committee on Energy and Natural Resources of the Senate and the Committee on Natural Resources of the House of Representatives, the following information: