The Department of Defense (DOD) is seeking proposals for the topic of "Alternative Position, Navigation, and Timing" as part of the SBIR 24.1 BAA. The objective of this solicitation is to provide resilient, multi-source, continuous, high-quality navigation and timing information for military, civil, and commercial users. The technology being sought should serve as an alternative or augmentation to GPS in situations where GPS signals are denied or degraded. The scope of this effort includes the provision of Alt-PNT services, hardware, software, and associated enabling technologies and approaches. Proposals may include Alt-PNT technologies and implementations needed within the domains of Alt-PNT Control systems, Space Segments, and User Equipment. The solicitation is closed, and the project duration and funding specifics are not provided in the document. For more information, refer to the solicitation agency website.