The park is maintained by the Central Park Conservancy, a private, not-for-profit organization that manages the park under a contract with the New York City Department of Parks and Recreation (NYC Parks),[1] in which the president of the Conservancy is the ex officio administrator of Central Park. The conservancy employs 80% of the maintenance and operations staff in the park. It effectively oversees the work of both the private and public employees under the authority of the publicly appointed Central Park administrator, who reports to the parks commissioner and the conservancy's president.[11] The Central Park Conservancy was founded in 1980 as a nonprofit organization with a citizen board to assist with the city's initiatives to clean up and rehabilitate the park.[2][3] The Conservancy took over the park's management duties from NYC Parks in 1998, though NYC Parks retained ownership of Central Park.[4] The Conservancy provides maintenance support and staff training programs for other public parks in New York City, and has assisted with the development of new parks such as the High Line and Brooklyn Bridge Park.[24]