The U.S. Army Corps of Engineers, Walla Walla District, is seeking to procure Traditional Cultural Knowledge Assistance Services through a Sole Source Indefinite Delivery, Indefinite Quantity Solicitation. The primary objective of this procurement is to support the Corps in managing Historic Properties of Religious and Cultural Significance to Indian Tribes (HPRCSITs), particularly those associated with the Confederated Tribes of the Colville Reservation, in compliance with the National Historic Preservation Act. This initiative emphasizes the importance of engaging with the affected community to identify and evaluate HPRCSITs, ensuring that traditional knowledge is integrated into preservation planning. Interested parties with the necessary qualifications must submit their organization details and capabilities to Ruth A. Johnson at ruth.a.johnson@usace.army.mil by 4:00 PM on December 27, 2024, as part of the market research for this opportunity.