The Department of the Interior's Bureau of Indian Education seeks potential contractors to install AC units with concrete pads and perform possible tree removal at the Havasupai Quarters in Supai, AZ. The work involves removing and replacing HVAC units and concrete slabs, including the abatement and disposal of hazardous materials. This source sought announcement is specifically for Indian Small Business Economic Enterprises, Indian Economic Enterprises, and Small Businesses to help determine the appropriate set-aside for the project. The NAICS code is 238220 with a size standard of $19 million. Responses are voluntary and must be submitted by the specified closing date.