Saint Helena
1 January 1989
Saint Kitts and Nevis
19 September 1983
Saint Lucia
22 February 1979
Saint Martin
4 October 1958 (French Constitution)
Saint Pierre and Miquelon
4 October 1958 (French Constitution)
Saint Vincent and the Grenadines
27 October 1979
Samoa
1 January 1962
San Marino
8 October 1600; electoral law of 1926 serves some of the
functions of a constitution
Sao Tome and Principe
approved March 1990, effective 10 September
1990
Saudi Arabia
governed according to Islamic law; the Basic Law that
articulates the government's rights and responsibilities was
promulgated by royal decree in 1992