The Winnipeg Declaration (sometimes referred to as the Winnipeg Manifesto) was the programme adopted by the Co-operative Commonwealth Federation (CCF) in Canada to replace the Regina Manifesto. Its full name is the "1956 Winnipeg Declaration of Principles of the Co-operative Commonwealth Federation" and it was adopted at the party's national convention held that year in Winnipeg, Manitoba. The Winnipeg Declaration remained the basic statement of party principles of the CCF and its successor, the New Democratic Party, until 1983.