The Washington Headquarters Services is soliciting information for the testing of quantum timing technology intended for defense applications under the AUKUS partnership. The Request for Information (RFI) seeks prototype devices for a trilateral test scheduled for May 2025 in Washington, D.C. The goal is to evaluate quantum timing technologies that are not yet commercially available but reach at least a Technology Readiness Level of 4, focusing on environmental sensitivity under various conditions. Each proposed device must meet specific technical specifications and must be produced by U.S.-based organizations. Responses are invited from a diverse range of entities, including private and public companies, academic institutions, and government-sponsored labs, addressing key aspects such as technology description, environmental resilience, and integration viability. The document specifies submission guidelines, including format and page limitations, urging unclassified information that can be shared with international partners. The initiative aims to enhance the interoperability of quantum-enhanced Position, Navigation, and Timing (PNT) solutions vital to national security and defense capabilities. Overall, this RFI serves as a preparatory measure for integrating leading-edge technologies into future defense systems while fostering international collaboration among partner nations.