; (2) to perform an analysis of alternatives before buying spares for more than two years; and (3) to require approval of the Secretary (without redelegation) if the procurement is to cover requirements for a period exceeding seven years. (c) Life-of-Type buy defined In this section, the term life-of-type buy means a one-time procurement for the total future requirement of an item that the Secretary determines is no longer expected to be produced. . (b) Clerical amendment The table of sections at the beginning of such chapter is amended by inserting before the item relating to section 2389 the following new item: 2388. Life-of-type buys. . B Amendments to general contracting authorities, procedures, and limitations 811. Use of technical data during challenges Section 2321(i) of title 10, United States Code, is amended— (1) by redesignating paragraphs (2) and (3) as paragraphs (3) and (4), respectively; and (2) by striking paragraph (1) and adding at the end the following new paragraphs: (1) (A) Upon issuance of a decision by a contracting officer under subsection (g) that an asserted use or release restriction is not justified, the Secretary of Defense or the Secretary of a military department may, after providing notice to the contractor or subcontractor, authorize release, disclosure, or use of the technical data in dispute if the Secretary of Defense or the Secretary of a military department, respectively, determines in writing that it is in the national security interests of the United States to authorize such release, disclosure, or use before— (i) the filing of an appeal with the agency Board of Contract Appeals; (ii) the provision to the contracting officer of a written notice of intent to file suit in the United States Court of Federal Claims; (iii) the filing of a suit in the United States Court of Federal Claims