; or (B) the transfer of the ARIES capability to a location other than PF–4. . 3113. Plutonium Modernization Program management Section 4219 of the Atomic Energy Defense Act ( 50 U.S.C. 2538a ) is amended by adding at the end the following new subsection: (h) Not later than 570 days after the date of the enactment of this Act, the Administrator for Nuclear Security shall ensure that the plutonium modernization program established by the Office of Defense Programs of the National Nuclear Security Administration, or any subsequently developed program designed to meet the requirements under subsection (a), is managed in accordance with the requirements of the Enhanced Management A program management category described in the execution instruction of the Office of Defense Programs entitled DP Program Execution Instruction: NA–10 Program Management Tools and Processes and issued on January 14, 2016, or any subsequent directive. . 3114. Pantex explosives manufacturing capability Subtitle A of title XLII of the Atomic Energy Defense Act ( 50 U.S.C. 2521 et seq. ) is amended by adding at the end the following new section: 4225. Pantex explosives manufacturing capability (a) In general Not later than the date on which the W87–1 modification program enters into phase 6.5 of the joint nuclear weapons life cycle process (as defined in section 4220), the Administrator shall establish at the Pantex Plant a conventional high explosives production capability with sufficient capacity to support full rate production of the main explosives used for the W87–1 warhead. (b) Briefing On the day after the date that the budget of the President is submitted to Congress under section 1105(a) of title 31, United States Code, for fiscal year 2025 and each fiscal year thereafter, the Administrator shall brief the congressional defense committees on the progress of the Administration in achieving the capability described in subsection (a). (c) Termination Subsection (b) shall terminate upon the date that the Administrator certifies to the