The U.S. Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE), on behalf of the Mine Safety and Health Administration (MSHA), has a need for the replacement of Heating, Ventilation, and Air Conditioning (HVAC) components located at 775 Technology Drive, Triadelphia, WV 26059, in accordance with this Request for Proposal (RFP). This RFP will result in a single award. The Period of Performance shall be Upon Receipt of Award to 365 Days After Award. This is a Total Small Business Set-Aside. Tradeoff source selection procedures will be utilized. Please read the RFP in its entirety, including instructions for submitting a proposal and the evaluation criteria the Government will use to make an award.