; and (3) the Secretary submits to the congressional defense committees a report setting forth a description of such requirement before the obligation of additional funds pursuant to such authority. (e) Exclusion of battle and interim spares from cost limitation The Secretary of the Navy shall exclude from the determination of the amounts set forth in subsection (a), the costs of the following items: (1) CVN–78 class battle spares. (2) Interim spares. (f) Written notice of change in amount The Secretary of the Navy shall submit to the congressional defense committees written notice of any change in the amount set forth in subsection (a) determined to be associated with a cost covered in subsection (b) not less than 30 days prior to making such change. . (b) Clerical amendment The table of sections at the beginning of such chapter is amended by inserting after the item relating to section 8691 the following new item: § 8692. Ford-class aircraft carrier cost limitation baselines. . (c) Repeal of superseded provision Section 122 of the John Warner National Defense Authorization Act for Fiscal Year 2007 ( Public Law 109–364