Member, Executive Committee, Northern Virginia Transportation Coordinating Council

Member, Health Families Fairfax Advisory Committee

Delegate, Commonwealth of Virginia House of Delegates, District 86, 2002-2016

Mayor, Town of Herndon, 1990-2001

Mayor, Town of Herndon, 1976-1984

Member, Herndon Town Council, 1971-1976

Former Member, Commerce and Labor Committee, Commonwealth of Virginia House of Delegates

Former Member, Education Committee, Commonwealth of Virginia House of Delegates

Member, Northern Virginia Regional Commission

Former Member, Science and Technology Committee, Commonwealth of Virginia House of Delegates

Former Member, Subcommittee #2 (Commerce and Labor), Commonwealth of Virginia House of Delegates

Former Member, Subcommittee on Higher Education, Commonwealth of Virginia House of Delegates

Former Member, Transportation Committee, Commonwealth of Virginia House of Delegates

Vice-Rector, Virginia Tech Board of Visitors, 1999-2001

Member, Virginia Tech Board of Visitors, 1996-2001

Member, Longwood College Board of Visitors, 1980-1988

Rector, Longwood College Board of Visitors, 1981-1988

Former Chair, Bank of the Potomac

Former Chair, Patton, Harris, Rust and Associates, Professional Corporation

Professional Engineer, Pennoni Associates, present

Member, American Institute of Certified Planners

Member, American Planning Association

Honorary Director, American Red Cross

Member, Chi Epsilon

Member, Dulles Area Transportation Association

Member, Fairfax Committee of 100

Former Chair, Fairfax/Falls Church United Way

Member, Northern Virginia Community Foundation

Member, Saint Timothy's Episcopal Church

Member, Virginia Tech Board of Visitors

Member, Virginia Tech Committee of 100

Member, Board of Advisors, BB&T Bank, 2002-2005

Member, Board of Directors, F&M Bank, 1996-2002

Member, Board of Directors, Virginia Local Government Investors Fund, 1986-1988

Member, Board of Visitors, Longwood College, 1980-1988

Chief Designer, Public Works, County of Fairfax, 1965-1969