[Gathering of HUD, Department of Energy, White House, and other officials to announce expansion of the President's] Better Buildings Challenge [to cover multifamily housing, as well as the launch of the Better Buildings Accelerators to support state and local government-led efforts to cut energy waste and eliminate market and technical barriers to greater building energy efficiency. HUD Secretary Shaun Donovan joined Energy Deputy Secretary Daniel Poneman, White House Council on Environmental Quality Chair Nancy Sutley, and Special Assistant to the President on Energy and Climate Change, Dan Utech, among other participants.]