The Department of Defense, specifically the U.S. Army Corps of Engineers – Fort Worth District, is seeking qualified contractors for the construction of an F-35 Special Access Program Facility (SAPF) at Ebbing Air National Guard Base in Fort Smith, Arkansas. This project aims to provide a secure workspace for multi-country mission planning and training related to the F-35 aircraft, including features such as controlled environments for secure flight planning, aircrew training, and necessary supporting facilities. The estimated construction cost ranges from $25 million to $100 million, with a performance period of approximately 730 calendar days. Interested firms must respond to the sources sought notice by April 14, 2025, and can direct inquiries to Major Ngoh at terence.k.ngoh@usace.army.mil.