Canada
made up of unwritten and written acts, customs, judicial
decisions, and traditions; the written part of the constitution
consists of the Constitution Act of 29 March 1867, which created a
federation of four provinces, and the Constitution Act of 17 April
1982, which transferred formal control over the constitution from
Britain to Canada, and added a Canadian Charter of Rights and
Freedoms as well as procedures for constitutional amendments

Cape Verde
new constitution came into force 25 September 1992;
underwent a major revision on 23 November 1995, substantially
increasing the powers of the president, and a further revision in
1999, to create the position of national ombudsman (Provedor de
Justica)

Cayman Islands
1959; revised 1972 and 1992

Central African Republic
passed by referendum 5 December 2004

Chad
passed by referendum 31 March 1996

Chile
11 September 1980, effective 11 March 1981; amended 30 July
1989, 1993, and 1997

China
most recent promulgation 4 December 1982

Christmas Island
Christmas Island Act of 1958-59 (1 October 1958)

Cocos (Keeling) Islands
Cocos (Keeling) Islands Act of 1955 (23
November 1953)

Colombia
5 July 1991