Tonga:
4 November 1875, revised 1 January 1967

Trinidad and Tobago:
1 August 1976

Tunisia:
1 June 1959; amended 12 July 1988

Turkey:
7 November 1982

Turkmenistan:
adopted 18 May 1992

Turks and Caicos Islands: introduced 30 August 1976; suspended in 1986; restored and revised 5 March 1988

Tuvalu:
1 October 1978

Uganda:
8 October 1995; adopted by the interim, 284-member
Constituent Assembly, charged with debating the draft constitution
that had been proposed in May 1993; the Constituent Assembly was
dissolved upon the promulgation of the constitution in October 1995

Ukraine:
adopted 28 June 1996

United Arab Emirates:
2 December 1971 (made permanent in 1996)