990

Saudi Arabia
governed according to Shari'a law; the Basic Law that
articulates the government's rights and responsibilities was
introduced in 1993

Senegal
new constitution adopted 7 January 2001

Serbia
10 November 2006

Seychelles
18 June 1993

Sierra Leone
1 October 1991; subsequently amended several times

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

Swaziland
the first constitution was signed into law in July 2005
and is scheduled to be implemented in January 2006

Sweden
1 January 1975

Switzerland
revision of Constitution of 1874 approved by the Federal
Parliament 18 December 1998, adopted by referendum 18 April 1999,
officially entered into force 1 January 2000

Syria
13 March 1973

Taiwan
25 December 1947; amended in 1992, 1994, 1997, 1999, 2000,
2005
note: constitution adopted on 25 December 1946; went into effect on
25 December 1947

Tajikistan
6 November 1994

Tanzania
25 April 1977; major revisions October 1984

Thailand
constitution signed by King PHUMIPHON on 11 October 1997;
abrogated on 19 Septem