The U.S. Government requires a contractor to replace the existing heating boiler systems and Roof Top Units (RTU) in Building 164 at Selfridge Air National Guard Base, Harrison Twp., MI. The contractor must provide complete and operable boiler and RTU systems in strict compliance with the Statement of Work, project specifications, and drawings. Where conflicts arise, the more stringent or higher-quality requirements will apply. No specific budget amount or non-bid/submission timelines are mentioned in this description. Performance of services will take place at Selfridge Air National Guard Base in Harrison Township, Michigan.