word | | Constitution |
| adopted | Poland | adopted by the National Assembly 2 April 1997; passed by national referendum 25 May 1997; effective 17 October 1997 |
| adopted | Portugal | adopted 2 April 1976; subsequently revised note: the revisions placed the military under strict civilian control, trimmed the powers of the president, and laid the groundwork for a stable, pluralistic liberal democracy ... |
| adopted | Russia | adopted 12 December 1993 |
| adopted | Senegal | adopted 7 January 2001; amended many times |
| adopted | Serbia | adopted 8 November 2006; effective 10 November 2006 |
| adopted | Slovenia | adopted 23 December 1991, amended 14 July 1997 and 25 July 2000 |
| adopted | Sri Lanka | adopted 16 August 1978, certified 31 August 1978; amended 20 December 2001 |
| adopted | 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 |
| adopted | Taiwan | adopted 25 December 1946; promulgated 1 January 1947; effective 25 December 1947; amended many times |
| adopted | Togo | adopted by public referendum 27 September 1992 |
| adopted | Turkmenistan | adopted 26 September 2008 |
| adopted | Ukraine | adopted 28 June 1996 |
| adopted | Uzbekistan | adopted 8 December 1992 |
| again | Belarus | 15 March 1994; revised by national referendum 24 November 1996 giving the presidency greatly expanded powers; became effective 27 November 1996; revised again 17 October 2004 removing presidential term limits |
| Agreement | Northern Mariana Islands | Constitution of the Commonwealth of the Northern Mariana Islands effective 1 January 1978; Covenant Agreement fully effective 4 November 1986 |