The Department of Defense, through the Missile Defense Agency (MDA), is seeking proposals for the development of high ISP controllable solid propellants under the Small Business Innovation Research (SBIR) program. The objective is to create new or improved propellant formulations that achieve higher specific impulse and high burn rate exponents across a wide range of pressures, while also addressing issues such as communications interference and the management of high melting point by-products. These advancements are crucial for applications in throttling axial motors and divert and attitude control systems. Proposals for Phase I are due by June 12, 2024, with the opportunity opening on May 15, 2024, and additional details available at the DOD SBIR/STTR website.