This Solicitation is set-aside for Competition Limited to Eligible 8(a) Concerns, in accordance with FAR 19. The U.S. General Services Administration (GSA) has a requirement to provide construction services involving a new rooftop HVAC Chiller System and CRAC units to serve the dedicated, 24/7 around-the-clock cooling needs of various Data / IT Rooms in the multi-story 11000 Wilshire Blvd. Federal Building in Los Angeles, CA. This system will be separate from the building’s house HVAC system. The project scope also includes major electrical work to serve this project’s HVAC electrical loads; structural mitigation of roof structure; repair of an existing bituminous asphalt roll roof per current roof manufacturer’s warranty requirements and installation of a Styrene-Butadiene Styrene (SBS) applied over the roof system; and installation of a new open protocol BACnet system that will be interfaced with a future tenant provided centralized control system.