Appointed, Public Service Commissioner, State of Florida, 2005-present

Chairman of the Public Service Commission, State of Florida, 2006-2010

Former Member, Federal Communications Commission Universal Service Joint Board

Former Member, Florida Energy Commission

Former Member, Governor's Action Team on Energy and Climate Change

Former Member, United States Department of Transportation Pipeline safety Standards Committee

Member, Minerals Management Service Outer Continental Shelf (OCS) Policy Committee, 1993-2004

Former Senior Cabinet Aide, Department of Agriculture and Consumer Services

Former Professor, Florida Agricultural and Mechanical University

Chief Analyst on Environmental Policy, Office of Policy and Budget (Executive Office of the Governor)

Deputy Secretary for Planning and Management, Florida Department of Environmental Protection, 1990-2005

Member, Florida State Bar Association, present

Member, Killearn United Methodist Church, present

Member, Leadership Florida, Class XIV, present

President, National Association of Regulatory Utility Commissioners (NARUC), present