Bhutan
no written constitution or bill of rights; note - the King
commissioned a committee to draft a constitution in 2001, but has
yet to be approved

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; note - each of the
entities also has its own constitution

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