The U.S. Geological Survey (USGS) is preparing to solicit bids for the refurbishment of the Fan System-6 (FS-6) air handling unit at the National Wildlife Health Center (NWHC) in Madison, Wisconsin. The project involves the complete overhaul of the existing multizone air handling unit, which has been operational since 1979, including the removal of outdated components, repair of the housing, and replacement of critical elements such as heating/cooling coils and the fan section. This refurbishment is crucial for maintaining the facility's climate control systems, ensuring optimal conditions for wildlife health research. The solicitation (140G0225R0009) is expected to be released around March 25, 2025, and will be available digitally on FedConnect. Interested contractors should note that the project is set aside for small businesses in the HVAC contracting sector, and they can reach out to Philip Robinson at probinson@usgs.gov for further inquiries.