This bill requires the termination of the All-domain Anomaly Resolution Office (AARO) within 60 days of the Act's enactment. Upon termination, the Secretary of Defense must transfer AARO's functions to other appropriate elements within the Department of Defense. A key provision also prohibits the Secretary of Defense or the Director of National Intelligence from establishing any new single office or entity with comprehensive or centralized authority over matters related to unidentified anomalous phenomena (UAP). The legislation repeals the original statutory authority that established AARO and makes several conforming amendments to existing laws. These amendments remove references to AARO from provisions concerning security classification guides, UAP records, and the National Archives, effectively transferring these responsibilities to the Secretary of Defense. The bill also includes definitions for terms such as "transmedium objects or devices" and "unidentified anomalous phenomena" to clarify its scope.