This is a preliminary Sources Sought notice for architect-engineering firms to submit an SF330 for developing and revising Master Plans for Vance AFB and Kegelman Auxiliary Airfield. The purpose is to gather information for planning, and it is not a formal request for proposals. Responses are due no later than February 18, 2026, at 11:00 AM CST. No contract award is guaranteed, and no costs for responding will be reimbursed. The work will be performed at the specified Oklahoma locations.