Harriet Tregoning is the Director of the Washington DC Office of Planning, where she works to make DC a walkable, bikeable, eminently livable, globally competitive and sustainable city. Her priorities include re-writing the city’s zoning code for the first time in 50 years, planning the revitalization of the poorest part of the District as part of the consolidation of the Department of Homeland Security’s Headquarters at the National Historic Landmark St. Elizabeth’s Hospital campus, and collaborating with her transportation colleagues to bring the nation’s largest bike-sharing program to DC (launched September 20th with 1000 bikes). Prior to this she was the director of the Governors’ Institute on Community Design and co-founder, with former Maryland Governor Glendening, and executive director of the Smart Growth Leadership Institute. She served Governor Glendening as both Secretary of Planning and then as the nation's first state-level Cabinet Secretary for Smart Growth. She was a Loeb Fellow at the Harvard University Graduate School of Design for 2003-2004.