Uruguay
27 November 1966, effective February 1967, suspended 27 June
1973, new constitution rejected by referendum 30 November 1980; two
constitutional reforms approved by plebiscite 26 November 1989 and 7
January 1997
Uzbekistan
new constitution adopted 8 December 1992
Vanuatu
30 July 1980
Venezuela
30 December 1999
Vietnam
15 April 1992
Virgin Islands
Revised Organic Act of 22 July 1954
Wallis and Futuna
28 September 1958 (French Constitution)
Yemen
16 May 1991; amended 29 September 1994 and February 2001
Zambia
2 August 1991
Zimbabwe
21 December 1979