; 129 Stat. 1196) and submitted to the congressional defense committees on March 25, 2018, that the United States should not pursue such research and development, no longer reflects the policy of the United States. (2) A certification of the Secretary of the Navy that an advanced naval nuclear fuel system based on low-enriched uranium would not reduce vessel capability, increase expense, or reduce operational availability as a result of refueling requirements. C Plans and Reports 3121. Estimation of costs of meeting defense environmental cleanup milestones required by consent orders (a) In general Subtitle A of title XLIV of the Atomic Energy Defense Act ( 50 U.S.C. 2581 et seq.) is amended by adding at the end the following section: 4409. Estimation of costs of meeting defense environmental cleanup milestones required by consent orders The Secretary of Energy shall include in the budget justification materials submitted to Congress in support of the Department of Energy budget for each fiscal year (as submitted with the budget of the President under section 1105(a) of title 31, United States Code) a report on the cost of meeting milestones required by a consent order at each defense nuclear facility at which defense environmental cleanup activities are occurring. The report shall include, for each such facility— (1) a specification of the cost of meeting such milestones during that fiscal year