The 1%” is a national program launched by Public Architecture in 2005 that challenges architecture and design firms to pledge 1% of their billable hours to pro bono work. Over 300 firms have signed on to date. If every architecture professional in the U.S. dedicated just 20 hours annually, it would add up to 5,000,000 hours each year—the equivalent of 2,500-person firm working fulltime for the public good. The 1% program was launched by Public Architecture in 2005 with the support of a grant from the National Endowment for the Arts (NEA), and is presently supported by a range of groups, including the NEA, American Institute of Architects (AIA), Boston Society of Architects (BSA), corporate and private foundations, as well as leading firms such as Elness Swenson Graham Architects (ESG), Hammel, Green & Abrahamson (HGA), Hellmuth, Obata + Kassabaum (HOK), HKS, McCall Design Group, and Perkins + Will.