The Defense Advanced Research Projects Agency (DARPA) is hosting an in-person Proposers Day for the Microsystem Induced CAtalysis (MICA) program on January 23, 2025, at Booz Allen Hamilton in McLean, VA. This event aims to foster collaboration among industry, academia, and government in the development of advanced microsystem technologies, focusing on how microsystems can control molecular catalysts and integrate molecular technology with microsystems. Participants will have the opportunity to share their capabilities, discuss potential teaming arrangements, and engage in networking, with registration required by January 15, 2024, and attendance limited to 147 individuals from a maximum of three representatives per organization. For further inquiries, interested parties can contact the BAA Coordinator at DARPA-SN-25-24@darpa.mil.