This Broad Agency Announcement solicits research proposals for the U.S. Army Combat Capabilities Development Command Army Research Laboratory, combining two previous announcements. It seeks proposals for foundational research spanning basic and applied science, with potential for advanced technology development. Specific research topics are listed on the ARL BAA topics website. The announcement includes several amendments, with the latest posted in January 2025 adding a "Visiting Scientist Program" targeted opportunity. A special notice was also issued in February 2024 for a literature review on information architectures in sensor networks.