We have previously written about the Department of Labor’s effort to expand the scope of its regulatory and enforcement jurisdiction over government contractors against the wishes of Congress and even fellow federal agencies. The United States Court of Appeals for the District of Columbia struck down an attempt by the DOL to significantly expand the Davis-Bacon Act to apply to the construction of a Public-Private Partnership project. The Davis-Bacon Act requires that contractors on federal and DC government construction projects pay prevailing wages and fringe benefits to the workers on such projects. DOL sought to apply the Act to CityCenterDC, which is a mixed-use development on the site of the DC Convention Center. This project includes 60 retail stores, various private offices, approximately 700 residential units, and a 370-room luxury hotel.