This bill authorizes the Secretary of State , through the Under Secretary for Arms Control and International Security, to lead diplomatic efforts to counter and reduce threats to United States space security. Responsibilities include assessing current and future threats, communicating these threats with allies, and promoting international norms of behavior in space that align with U.S. national security and foreign policy priorities. The Secretary is also empowered to pursue international norms, transparency, and confidence-building measures on space arms control and military-related space policy to deter disruptive actions and reduce risks. The legislation permits the Secretary of State to enter into international agreements with allies for information sharing and to enhance U.S. outer space security, requiring congressional consultation and notification. It also allows for the initiation of space security dialogues with key allies to integrate space security into collective defense concepts, identify investment priorities for interoperable systems, and leverage collective industrial strengths for secure supply chains. The Act mandates regular consultations between the Secretary of State and appropriate congressional committees on current and emerging threats to U.S. space security. These consultations must cover adversary intentions, State Department prevention efforts, and any plans by countries to place nuclear weapons in space, ensuring ongoing oversight and communication.