The Parliament Hill Rehabilitation is a series of ongoing rehabilitation and preservation projects at the complex on Parliament Hill, in Ottawa, Ontario. The $3-billion project aims to preserve and rehabilitate the Parliament of Canada and various buildings within the Parliamentary Precinct. A series of interior renovations began in 2002 by the Public Works and Government Services Canada at the direction of the National Capital Commission, and is concentrated on the Centre Block, West Block, and East Block, Library of Parliament, Confederation Building, and the Justice Building.