Bureau of Indian Affairs (BIA)
            Website unavailable at this time

Bureau of Land Management (BLM)
            http://www.blm.gov/natacq/

Bureau of Reclamation (BOR)
           http://www.usbr.gov/mso/aamd/

Minerals Management Service (MMS)
            http://www.mms.gov/adm/prop.html

National Business Center (NBC)
            http://www.nbc.gov/acquisition.html

GovWorks
            http://www.govworks.gov/

National Park Service (NPS)
           http://www.nps.gov/legacy/business.html

Office of Surface Mining (OSM)
            http://www.osmre.gov/business.htm

U.S. Fish & Wildlife Service (FWS)
            http://www.fws.gov/contracts/

U.S. Geological Survey (USGS)
           http://www.usgs.gov/contracts/index.html