; and ; and (C) by adding at the end the following new paragraph: (4) the Navy adjusts scheduled maintenance and repair actions to maintain a minimum of 24 amphibious warfare ships operationally available for worldwide deployment. ; and (2) by redesignating the second subsection (g) (defining amphibious warfare ship) as subsection (h). 1023. Prohibition on retirement of certain naval vessels None of the funds authorized to be appropriated by this Act for fiscal year 2024 may be obligated or expended to retire, prepare to retire, or place in storage any of the following naval vessels: (1) USS Germantown (LSD 42). (2) USS Gunston Hall (LSD 44). (3) USS Tortuga (LSD 46). (4) USS Shiloh (CG 67). 1024. Report on the potential for an Army and Navy joint effort for watercraft vessels (a) Report required Not later than February 29, 2024, the Secretary of the Navy, in coordination with the Secretary of the Army, shall submit to the congressional defense committees a report on the feasibility of conducting a joint Army and Navy effort to develop and field a family of watercraft vessels to support the implementation of the Marine Corps concept of expeditionary advanced base operations and Army operations in maritime environments. (b) Elements The report required by subsection (a) shall include an assessment of whether a shared base platform could meet requirements of the Department of the Navy and the Department of the Army, and, if so, an assessment of the benefits and challenges of procuring a technical data package to allow simultaneous construction of such platform by multiple builders and using block buy authorities. D Counterterrorism 1031. Extension of prohibition on use of funds to close or relinquish control of United States Naval Station, Guantanamo Bay, Cuba Section 1036 of the National Defense Authorization Act for Fiscal Year 2018 ( Public Law 115–91