This is an annual notice for a Commercial Solutions Opening (CSO) from the U.S. Space Force's Operational Test and Training Infrastructure (OTTI) seeking innovative capabilities and technological advancements. The opportunity involves multiple specific Areas of Interest (AOIs), including Continuous Fitness Assessment, a Multirole Satellite Frequency In-field Test Suite, National Space Test and Training Complex enhancements, and a Distributed Synthetic Training Environment. The notice references several amendments and attached documents that provide updated questions and answers for these AOIs. The Phase I submission period for AOI 05 has been extended. No budget or location for performance is specified in this description.