of Enterprise Assessments to ensure the project is in compliance with nuclear safety requirements. 304. None of the funds made available in this title may be used to approve critical decision-2 or critical decision-3 under Department of Energy Order 413.3B, or any successive departmental guidance, for construction projects where the total project cost exceeds $100,000,000, until a separate independent cost estimate has been developed for the project for that critical decision. 305. The Secretary of Energy may not transfer more than $274,833,000 from the amounts made available under this title to the working capital fund established under section 653 of the Department of Energy Organization Act ( 42 U.S.C. 7263 ): Provided , That the Secretary may transfer additional amounts to the working capital fund after the Secretary provides notification in advance of any such transfer to the Committees on Appropriations of both Houses of Congress: Provided further , That any such notification shall identify the sources of funds by program, project, or activity: Provided further , That the Secretary shall notify the Committees on Appropriations of both Houses of Congress before adding or removing any activities from the fund. 306. (a) None of the funds made available in this or any prior Act under the heading Defense Nuclear Nonproliferation may be made available to enter into new contracts with, or new agreements for Federal assistance to, the Russian Federation. (b) The Secretary of Energy may waive the prohibition in subsection (a) if the Secretary determines that such activity is in the national security interests of the United States. This waiver authority may not be delegated. (c) A waiver under subsection (b) shall not be effective until 15 days after the date on which the Secretary submits to the Committees on Appropriations of both Houses of Congress, in classified form if necessary, a report on the justification for the waiver. 307. (a) New Regional Reserves The Secretary of Energy may not establish any new