The CIA World Factbook Every edition, 1990 to 2025 Southeast Asia
Constitution Thailand, in 36 editions.
The entry for Thailand published Constitution in 36 editions of 36, from 1990 to 2025. The text changed in 22 editions. Each is shown as published. Constitution in every entry.
- editions changed the text
- 22
- the first edition with it
- 1990
- the latest edition with it
- 2025
Published as “Constitution” (1990 to 2025).
field in that editiontext changed from the edition beforenot in that editionthe edition shownChoose an edition on the strip beside the text, or step through them with the arrows. Mark changes compares it with the edition before: the marks are ours, words added and words removed.
2025 edition
Changed since 202422 December 1978
22 December 1978
22 December 1978; interim constitution promulgated by National Peace-Keeping Council on 1 March 1991
22 December 1978 1978; interim constitution promulgated by National Peace-Keeping Council on 1 March 1991
22 December 1978; new constitution approved 7 December 1991
22 December 1978; interim new constitution promulgated by National Peace-Keeping Council on 1 March approved 7 December 1991
- 22 December 1978;
- new constitution approved 7 December 1991;
- amended 10 June 1992
22 December 1978; new constitution approved 7 December 1991 1991; amended 10 June
1992
new constitution approved 7 December 1991; amended 10 June 1992
22 December 1978; new constitution approved 7 December 1991; amended 10 June
new constitution approved 7 December 1991; amended 10 June 1992
new constitution approved 7 December 1991; amended 10
June 1992
new constitution approved 7 December 1991; amended 10 June 1992
new constitution approved 7 December 1991; amended 10
10 June 1992
- new constitution approved 7 December 1991;
- amended 10 June 1992;
- new constitution currently being drafted with completion expected by the end of 1997
new constitution approved 7 December 1991; amended
June 1992 1992; new constitution currently being drafted with completion
expected by the end of 1997
new constitution signed by King PHUMIPHON on 11 October 1997
new constitution approved 7 December 1991; amended 10 signed by
June 1992; new constitution currently being drafted with completion
expectedthe end of King PHUMIPHON on 11 October
1997
new constitution signed by King PHUMIPHON on 11 October 1997
new constitution signed by King PHUMIPHON on 11 October
October 1997
The same text in 6 editions, 2000 to 2005.
new constitution signed by King PHUMIPHON on 11 October 1997
new constitution signed by King PHUMIPHON on 11
- constitution signed by King PHUMIPHON on 11 October 1997;
- abrogated on 19 September 2006 after coup;
- interim constitution promulgated on 1 October 2006;
- junta has promised new constitution by October 2007
Rewritten: too little of the 2005 text remains to mark the changes.
constitution signed by King PHUMIPHON on 11 October 1997; abrogated on 19 September 2006 after coup; interim constitution promulgated on 1 October 2006; junta has promised new constitution by October 2007
The same text in 2007 and 2008.
constitution signed by King PHUMIPHON (BHUMIBOL) on 24 August 2007
Rewritten: too little of the 2006 text remains to mark the changes.
constitution signed by King PHUMIPHON (BHUMIBOL) on 24 August 2007
The same text in 4 editions, 2009 to 2012.
24 August 2007
constitution signed by King PHUMIPHON (BHUMIBOL) on 24 August 2007
The same text in 2013 and 2014.
many previous; latest approved by referendum 19 August 2007, effective 24 August 2007 (2013)
many previous; latest approved by referendum 19 August 2007, effective 24 August 2007 (2013)
- many previous; interim constitution released 22 July 2014 (2015)
many previous; latest approved by referendum 19 August 2007, effective 24 August 2007 (2013) interim constitution released 22 July 2014 (2015)
- many previous;
- interim constitution - replacing the 2007 permanent constitution - signed by the king 22 July 2014;
- first draft of new constitution completed 17 April 2015, rejected by drafting committee 6 September 2015;
- final draft completed by new drafting committee 29 March 2016, passed by referendum 7 August 2016 (2016)
Rewritten: too little of the 2015 text remains to mark the changes.
many previous; interim constitution - replacing the 2007 permanent constitution - signed by the king 22 July 2014; first draft of new constitution completed 17 April 2015, rejected by drafting committee 6 September 2015; final draft completed by new drafting committee 29 March 2016, passed by referendum 7 August 2016 (2016)
- many previous;
- draft of latest completed 29 March 2016, approved by referendum 7 August 2016, signed by the king 6 April 2017;
- note - the final version has several changes not reflected in the one passed by referendum (2016)
Rewritten: too little of the 2016 text remains to mark the changes.
many previous; draft of latest completed 29 March 2016, approved by referendum 7 August 2016, signed by the king 6 April 2017; note - the final version has several changes not reflected in the one passed by referendum (2016)
- history:
- many previous; latest completed 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017 (2017)
- amendments:
- proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly;
- passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature by the prime minister (2017)
Rewritten: too little of the 2017 text remains to mark the changes.
history: many previous; latest completed 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017 (2017)
amendments: proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly; passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature by the prime minister (2017)
- history:
- many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017
- amendments:
- proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly;
- passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature of the prime minister (2017)
history: many previous; latest completed drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017 (2017)
amendments: proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly; passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature by of the prime minister (2017)
The same text in 2020 and 2021.
- history:
- many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017
- amendments:
- proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly;
- passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature of the prime minister
history: many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king 6 April 2017
amendments: proposed as a joint resolution by the Council of Ministers and the National Council for Peace and Order (the junta that has ruled Thailand since the 2014 coup) and submitted as a draft to the National Legislative Assembly; passage requires majority vote of the existing Assembly members and presentation to the monarch for assent and countersignature of the prime minister (2017)
The same text in 3 editions, 2022 to 2024.
- history:
- many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king on 6 April 2017
- amendments:
- amendments require a majority vote in a joint session of the House and Senate and further require at least one fifth of opposition House members and one third of the Senate vote in favor;
- a national referendum is additionally required for certain amendments;
- all amendments require signature by the king;
- Thailand's 2017 constitution was amended in November 2021 to increase the number of constituency members of parliament (MPs) from 350 to 400, reduce the number of party-list MPs from 150 to 100, and change the election to a two-ballot system
history: many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king on 6 April 2017
amendments: proposed as amendments require a majority vote in a joint resolution by session of the Council House and Senate and further require at least one fifth of Ministers opposition House members and one third of the National Council Senate vote in favor; a national referendum is additionally required for Peace and Order (the junta that has ruled Thailand since certain amendments; all amendments require signature by the 2014 coup) and submitted as a draft king; Thailand's 2017 constitution was amended in November 2021 to increase the National Legislative Assembly; passage requires majority vote number of the existing Assembly constituency members and presentation of parliament (MPs) from 350 to 400, reduce the monarch for assent and countersignature number of party-list MPs from 150 to 100, and change the prime minister election to a two-ballot system
- history:
- many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king on 6 April 2017
- amendment process:
- amendments require a majority vote in a joint session of the House and Senate and further require at least one fifth of opposition House members and one third of the Senate vote in favor;
- a national referendum is additionally required for certain amendments;
- all amendments require signature by the king
history: many previous; latest drafted and presented 29 March 2016, approved by referendum 7 August 2016, signed into law by the king on 6 April 2017amendments: amendment process: amendments require a majority vote in a joint session of the House and Senate and further require at least one fifth of opposition House members and one third of the Senate vote in favor; a national referendum is additionally required for certain amendments; all amendments require signature by the king; Thailand's 2017 constitution was amended in November 2021 to increase the number of constituency members of parliament (MPs) from 350 to 400, reduce the number of party-list MPs from 150 to 100, and change the election to a two-ballot system king
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Cite this page
Central Intelligence Agency. “Thailand: Constitution.” The World Factbook, 1990–2025 editions. Archived by The Factbook, thefactbook.org/thailand/constitution.