Singapore
3 June 1959; amended 1965 (based on preindependence State
of Singapore Constitution)
Slovakia
ratified 1 September 1992, effective 1 January 1993;
changed in September 1998 to allow direct election of the president;
amended February 2001 to allow Slovakia to apply for NATO and EU
membership
Slovenia
adopted 23 December 1991
Solomon Islands
7 July 1978
Somalia
25 August 1979, presidential approval 23 September 1979
note: the formation of transitional governing institutions, known as
the Transitional Federal Government, is currently ongoing
South Africa
10 December 1996; this new constitution was certified
by the Constitutional Court on 4 December 1996, was signed by then
President MANDELA on 10 December 1996, and entered into effect on 3
February 1997; it is being implemented in phases
Spain
6 December 1978, effective 29 December 1978
Sri Lanka
adopted 16 August 1978, certified 31 August 1978
Sudan
12 April 1973; suspended following coup of 6 April 1985;
interim constitution of 10 October 1985 suspended following coup of
30 June 1989; new constitution implemented on 30 June 1998 partially
suspended 12 December 1999 by President BASHIR; under the CPA,
Interim National Constitution ratified 5 July 2005; Constitution of
Southern Sudan signed December 2005
Suriname
ratified 30 September 1987