Sources-sought notice W906ZL27RA001 from the Army's Product Manager Tactical Training System asks vendors how their Group 1 drones would comply with the UAS TRACR II interface control document, so small drones can train on ranges that run TRACR II software. White papers of up to five pages should cover implementation and test plans, message handling, IP networking, control-state transitions and any extra hardware needed, and may propose changes to the ICD. The Army is building a compliance test tool to release to respondents later and is gauging whether to set the work aside for small businesses. Responses go through Army Contracting Command-Orlando. Closes Nov. 22, 2026, 4:30 p.m. Eastern.