Propane for Turtle Mountain Agency

The Department of the Interior, specifically the Great Plains Region office located in Aberdeen, South Dakota, is soliciting proposals for the provision of propane for the Turtle Mountain Agency under solicitation number 140A0126Q0047. This combined contract opportunity is designated as a set-aside for Indian Small Business Economic Enterprises under NAICS code 325120. The solicitation was posted on August 28, 2026, with a response deadline of September 9, 2026, at 2:00 PM. To be eligible for award, offerors must provide a self-certification via the Indian Economic Enterprise Representation Form to confirm they meet the definition of an Indian Economic Enterprise as required by the Buy Indian Act and Department of the Interior Acquisition Regulation. This certification must be maintained from the time of the offer through the duration of the contract term. Primary coordination for this requirement is managed by Crystal Keys.