0 November 1986, amended
many times

Barbados:
30 November 1966

Belarus:
30 March 1994; revised by national referendum of 24
November 1996 giving the presidency greatly expanded powers and
became effective 27 November 1996

Belgium:
7 February 1831, last revised 14 July 1993; parliament
approved a constitutional package creating a federal state

Belize:
21 September 1981

Benin:
December 1990

Bermuda:
8 June 1968, amended 1989

Bhutan:
no written constitution or bill of rights; note - Bhutan
uses 1953 Royal decree for the Constitution of the National
Assembly; on 7 July 1998, a Royal edict was ratified giving the
National Assembly additional powers

Bolivia:
2 February 1967; revised in August 1994

Bosnia and Herzegovina:
the Dayton Agreement, signed 14 December
1995, included a new constitution now in force

Botswana:
March 1965, effective 30 September 1966

Brazil:
5 October 1988

British Virgin Islands:
1 June 1977

Brunei:
29 September 1959 (some provisions suspended under a State
of Emergency since December 1962, others since independence on 1
January 1984)

Bulgaria:
adopted 12 July 1991

Burkina Faso:
2 June 1991 approved by referendum; 11 June 1991
formally adopted

Burma:
3 January 1974 (suspended since 18 September 1988); national
convention started on 9 January 1993 to draft a new constitution;
progress has since been stalled

Burundi:
13 March 1992; provided for establishment of a plural
political system; supplanted on 6 June 1998 by a Transitional
Constitution which enlarged the National Assembly and created two
vice presidents

Cambodia:
promulgated 21 September 1993

Cameroon:
20 May 1972 approved by referendum; 2 June 1972 formally
adopted; revised January 1996

Canada:
17 April 1982 (Constitution Act); originally, the machinery
of the government was set up in the British North America Act of
1867; charter of rights and unwritten customs

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

Cayman Islands:
1959, revised 1972 and 1992

Central African Republic:
passed by referendum 29 December 1994;
adopted 7 January 1995

Chad:
passed by referendum 31 March 1995

Chile:
11 September 1980, effective 11 March 1981, amended 30 July
1989, 19