Please download complete (DRAFT) BAA. Synopsis is as follows: The Air Force Research Laboratory Space Vehicles Directorate (AFRL/VS), in conjunction with the DOD Office of Force Transformation (OFT), is requesting proposals (technical and cost/business) in response to this Broad Agency Announcement (BAA). The primary objective of this BAA is to develop and demonstrate modular bus standards, interfaces, and processes to advance Operationally Responsive Space modular bus capabilities in order to meet rapidly evolving and unanticipated tactical military needs. This requires that useable, tactically relevant space system performance be delivered much faster and at lower cost. This adaptable, low-cost modular bus enables the tactical warfighter to rapidly deploy tactical satellites as low-cost consumables to fill critical sensing requirements. These tactical satellites become additional sensor nodes within a tiered network of tactical and national sensor systems comprised of ground, air, and space assets. The goal is to move toward an adaptable modular bus development process that leverages plug-and-play standards and interfaces and incorporates the latest bus component technologies, supports multiple payloads and orbital mission profiles, and has minimal non-recurring engineering for successive satellite builds.