Headline in The Philadelphia Inquirer of 16 November 1919 reporting the first use of cloture by the United States Senate

Cloture (UK: US: /ˈklər/,[1][2] also UK: /ˈkltjʊər/),[3] closure[4] or, informally, a guillotine,[4] is a motion or process in parliamentary procedure aimed at bringing debate to a quick end.

The cloture procedure originated in the French National Assembly, from which the name is taken. Clôture is French for "the act of terminating something".

It was introduced into the Parliament of the United Kingdom by William Ewart Gladstone to overcome the obstructionism of the Irish Parliamentary Party and was made permanent in 1887.

It was subsequently adopted by the United States Senate and other legislatures. The name cloture remains in the United States;[3] in Commonwealth countries it is usually closure[3] or, informally, guillotine; in the United Kingdom closure and guillotine are distinct motions.[5][6]


In Australia, the procedure by which finite debating times for particular bills are set, or protracted debates are brought to a close, is referred to as a "guillotine" or “gag”. Generally, a minister will declare that a bill must be considered as urgent, and move a motion to limit debating time. The declaration and motion may refer to a single bill, or to multiple bills or packages of bills. A guillotine motion may not be debated or amended, and must be put to a vote immediately.[4]


After a number of occasions where the opposition managed to delay or prevent passage of government bills, closure in Canada was adopted by the House of Commons in 1913 on the motion of Conservative Prime Minister Robert Borden. The new closure rule was used by the government only a few days later, during debate at the Committee of the Whole stage of the Naval Aid Bill. Between 1913 and 1932, closure was invoked 11 times. It was used next time in 1956 during the passage of a bill to establish the Northern Ontario Pipeline Crown Corporation.[7] "Closure" is the term used in Canada; "cloture" and "guillotine" are not used.[citation needed]

Procedure on closure in Canada is governed under Standing Order no. 57 of the House of Commons and consists of three parts: Notice of closure, a motion of closure, and a final period of debate before final voting on the bill being closured.

Notice of closure is an oral statement announcing intention to call for closure given by any Minister at a prior sitting of the Committee of the Whole. The notice need not be the day immediately prior to the sitting at which the bill will be closured, but cannot be in the same sitting as the final motion of closure.

The motion of closure, referred to as a motion "that the debate shall not be further adjourned", is passed by a simple majority of the House of Commons, although in the event of a tie, the Speaker of the House will apply Speaker Denison's rule to issue the casting vote.

Should the motion of closure pass, all members are given a single period in which to speak lasting no more than 20 minutes. If the final period of speaking to the bill has not been finished by 8:00 p.m. that same day, no MP may speak after that point, and the bill moves to a final vote.[8]

Hong Kong

The first cloture in Hong Kong was introduced in the Legislative Council of Hong Kong on 17 May 2012, by Tsang Yok-sing (President of the Legislative Council of Hong Kong), to abruptly halt filibuster during debate at the Committee of the Whole stage of the Legislative Council (Amendment) Bill 2012.[9] The motion to end debate was submitted by Council member Philip Wong Yu-hong some time after 4 am Hong Kong time, after a marathon session that lasted over 33 hours. Wong stood up and suggested that legislatures in other countries have a procedure called "cloture motion", and suggested Council President should end debate immediately. President Tsang agreed and said that he considered ending debate even without Wong's suggestion because he would not allow debate to go on endlessly. Cloture is not defined by any rule or precedent of the Legislative Council. Tsang made reference to Standing Order 92, which stated "In any matter not provided for in these Rules of Procedure, the practice and procedure to be followed in the Council shall be such as may be decided by the President who may, if he thinks fit, be guided by the practice and procedure of other legislatures".[10] Standing Order 92 therefore may implicitly give Council President discretion on whether he should or should not follow the cloture rules of other legislatures, but this is up to debate. Legislative Council President Tsang chose to end debate without calling for a cloture vote, which is questionable. Council member Leung Kwok-hung then stood up and said that he had never heard of cloture without a vote anywhere else and suggested there should have been a cloture vote.

Cloture was again invoked by Tsang Yok-sing on 13 May 2013 to halt debate of the 2013 Appropriation Bill.

New Zealand

In the New Zealand House of Representatives, any MP called to speak may move a closure motion. If the length of the debate is not fixed by standing orders or the Business Committee, the Speaker may decide to put the closure motion to a vote, which is carried by a simple majority.[11]

United Kingdom


A closure motion may be adopted to end debate on a matter both in the House of Commons[5] and in the House of Lords[5] by a simple majority of those voting. In the House of Commons, at least 100 MPs (not counting two acting as tellers) must vote in favour of the motion for closure to be adopted;[5] the Speaker of the House of Commons may choose to deny the closure motion,[5] if he or she feels that insufficient debate has occurred, or that the procedure is being used to violate the rights of the minority.[citation needed] In the House of Lords, the Lord Speaker does not possess an equivalent power.[12] Only one closure motion is permitted per debate.[5]

Specific to legislation, a guillotine motion, formally an allocation of time motion, limits the amount of time for a particular stage of a bill.[6] Debate ceases when the allotted time expires; a single vote is taken immediately to pass the stage of the bill and, in the case of a committee stage or report stage, to accept all undebated sections and government amendments. The use of guillotines has been replaced by the programme motion, where the amount of time for each stage is agreed after a bill's second reading.[6][13] Both guillotine motions and programme motions are specific to the Commons; the Lords does not permit time restrictions.[6][13]


On 24 January 1881, the second Gladstone ministry attempted to move the first reading of the Protection of Person and Property Bill, a controversial response to the Irish agrarian disturbances known as the Land War.[14][15] The Irish Parliamentary Party (IPP) under Charles Stewart Parnell responded with the most extreme example of its policy of obstructionism by filibuster; after two sittings lasting 22 hours and then 41 hours, the Speaker of the Commons, Henry Brand simply refused to recognise any further IPP MPs wishing to speak, and in the early hours of 2 February 1881 he put the motion, which was passed.[15][16] The IPP MPs objected that this was an abuse by the speaker of their rights as members,[17] and the government responded by formalising the process as an amendment to the standing orders, moved by Gladstone on 3 February 1881:[15][18]

That, if upon Notice given a Motion be made by a Minister of the Crown that the state of Public Business is urgent, and if on the call of the Speaker 40 Members shall support it by rising in their places, the Speaker shall forthwith put the Question, no Debate, Amendment, or Adjournment being allowed; and if, on the voices being given he shall without doubt perceive that the Noes have it, his decision shall not be challenged, but, if otherwise, a Division may be forthwith taken, and if the Question be resolved in the affirmative by a majority of not less than three to one, the powers of the House for the Regulation of its Business upon the several stages of Bills, and upon Motions and all other matters, shall be and remain with the Speaker, until the Speaker shall declare that the state of Public Business is no longer urgent, or until the House shall so determine upon a Motion, which after Notice given may be made by any Member, put without Amendment, Adjournment, or Debate, and decided by a majority

Gladstone described it as "a subject of considerable novelty, and of the extremest gravity",[19] and many Irish members objected and were suspended from the House before the amendment motion was moved.[15][20]

In 1882, Gladstone proposed a major overhaul of the rules of procedure, and on 20 February debate began on the first resolution, on "putting the question".[15][21] The session beginning in November 1882 was devoted entirely to the new rules,[22] and the motion on putting the question was passed, after 19 days' debate, on 10 November 1882:[23]

That when it shall appear to Mr. Speaker, or to the Chairman of Ways and Means in a Committee of the whole House, during any Debate, that the subject has been adequately discussed, and that it is the evident sense of the House, or of the Committee, that the Question be now put, he may so inform the House or the Committee; and, if a Motion be made "That the Question be now put", Mr. Speaker, or the Chairman, shall forthwith put such Question; and, if the same be decided in the affirmative, the Question under discussion shall be put forthwith: Provided that the Question, "That the Question be now put", shall not be decided in the affirmative, if a Division be taken, unless it shall appear to have been supported by more than two hundred Members, or unless it shall appear to have been opposed by less than forty Members and supported by more than one hundred Members.

The rule was invoked only twice by Gladstone's ministry,[14] and the second Salisbury ministry secured its amendment, after six days' debate, on 1 March 1887:[15][14][24]

That, after a Question has been proposed, a Motion may be made, if the consent of the Chair has been previously obtained, "That the Question be now put". Such Motion shall be put forthwith, and decided without Amendment or Debate: When the Motion "That the Question be now put", has been carried, and the Question consequent thereon has been decided, any further Motion may be made (the consent of the Chair having been previously obtained) which, may be requisite to bring to a decision any Question already proposed from the Chair; and also if a Clause be then under consideration, a Motion may be made (with the consent of the Chair as aforesaid) That the Question, That the Clause stand part, or be added to the Bill, be now put. Such Motions shall be put forthwith, and decided without Amendment or Debate: Provided always, That Questions for the Closure of Debate shall not be decided in the affirmative, if a Division be taken, unless it shall appear by the numbers declared from the Chair, that such Motion was supported by more than Two Hundred Members, or was opposed by less than Forty Members, and supported by more than One Hundred Members

By 1909, the closure was applicable in committees and to motions as well as in the house and to bills.[15]

In 2000, the Select Committee on the Modernisation of the House of Commons recommended discontinuing the use of allocation of time motions for bills, and instead passing a programme motion to make a programme order.[25] This was accepted by the Commons on 7 November 2000.[25] One of the Cameron–Clegg coalition's most significant parliamentary defeats was in 2012, on the programme motion for the House of Lords Reform Bill 2012; some rebel MPs agreed with the substance of the bill but felt not enough time had been allocated to its debate.[26]

United States


On 8 March 1917, during World War I, a rule allowing cloture of debate was adopted by the Senate by a vote of 76–3[27] at the urging of President Woodrow Wilson,[28] after a group of 12 anti-war senators managed to kill a bill that would have allowed Wilson to arm merchant vessels in the face of unrestricted German submarine warfare.[29] This effort was led by Republican Senators Henry Cabot Lodge and Charles Curtis.[30] This was successfully invoked for the first time on 15 November 1919,[31] during the 66th Congress, to end a filibuster on the Treaty of Versailles.[32]

The Senate's rules originally[33] required a supermajority of two-thirds of all senators present and voting to invoke cloture.[34][35] For example, if all 100 senators voted on a cloture motion, 67 affirmative votes were required to invoke cloture; however, if some senators were absent and only 80 senators voted, only 54 would have to vote in favor.[36] In the early years of the cloture rule, it proved very difficult to achieve this. The Senate tried 11 times between 1927 and 1962 to invoke cloture but failed each time. Filibuster use was particularly heavy by Democratic senators from southern states to block civil rights legislation.[37]

In 1975, the Democratic Senate majority, having achieved a net gain of four seats in the 1974 Senate elections to attain a strength of 61 (with an additional independent senator caucusing with them for a total of 62), reduced the necessary supermajority to three-fifths of senators duly chosen and sworn.[38] In practice, most bills cannot become law without the support of 60 senators.

Under the Senate rules and precedents, certain questions are nondebatable or debate time on them is limited, most notably bills considered under the reconciliation procedure or joint resolutions providing for congressional disapproval. Therefore, these measures cannot be filibustered and are not subjected to the supermajority cloture threshold. Although filing cloture on nondebatable measures is redundant, it has been done on occasion.[39]: 302 

On November 21, 2013, after many of President Barack Obama's nominees had been filibustered (most notably, Republicans refused to confirm any nominees to the United States Court of Appeals for the District of Columbia Circuit), Majority Leader Harry Reid raised a point of order that the threshold for invoking cloture on nominations, other than those to the Supreme Court of the United States, is a simple majority. The presiding officer overruled the point of order. The ruling of the chair was overruled by the Senate by a vote of 48–52, with all Republicans, as well as Democratic Senators Carl Levin, Joe Manchin and Mark Pryor, voting in favor of sustaining the decision of the chair.[40] On April 6, 2017, following the filibuster of Neil Gorsuch's nomination to the Supreme Court of the United States, Majority Leader Mitch McConnell raised a point of order that the 2013 precedent also applied to Supreme Court nominations. The presiding officer overruled the point of order. The ruling of the chair was overturned by the Senate by a vote of 48–52, with all Democrats voting to sustain the decision of the chair. As a result of these two precedents, the threshold for invoking cloture on nominations is now a simple majority.[41]

In the United States House of Representatives, the equivalent motion is the previous question.


The procedure for invoking cloture is as follows:[42]

After cloture is invoked, the Senate automatically proceeds to consider the measure on which cloture was invoked (if it was not before the Senate already). The following restrictions apply:

Under rule XXII, paragraph 3 (added on January 24, 2013), a cloture motion signed by 16 senators (including the majority leader, minority leader, 7 other majority senators and 7 other minority senators) presented on a motion to proceed ripens one hour after the Senate convenes on the following calendar day. If cloture is invoked, the motion to proceed is not debatable.[45]

Under rule XXVIII, paragraph 2 (added on January 24, 2013), a cloture motion on a compound motion to go to conference ripens two hours after it is filed. If cloture is invoked, the compound motion is not debatable.[46]

Number of cloture motions filed, voted on, and invoked by the U.S. Senate, 1917−2014.
Cloture voting in the United States Senate , 1917−2014.[47]

See also


  1. ^ cloture in Longman Dictionary of Contemporary English
  2. ^ "cloture: definition of cloture in Oxford dictionary (American English) (US)". OxfordDictionaries.com. Archived from the original on 25 December 2015. Retrieved 22 February 2016.
  3. ^ a b c "cloture - definition of cloture in English from the Oxford dictionary". OxfordDictionaries.com. Archived from the original on 1 October 2015. Retrieved 22 February 2016.
  4. ^ a b c Brief Guide No. 14 – Debating legislation under time limits (PDF), Parliament of Australia – Senate, 5 June 2009, retrieved 14 March 2012
  5. ^ a b c d e f "Closure motions". Glossary. UK Parliament. Retrieved 22 February 2016.
  6. ^ a b c d "Allocation of time motions". Glossary. UK Parliament. Retrieved 22 February 2016.
  7. ^ "House of Commons Procedure and Practice – Third Edition, 2017. Chapter 14: The Curtailment of Debate". Parliament of Canada. Retrieved 1 May 2023.
  8. ^ "Standing Orders of the House of Commons, Chapter VIII (Motions)". Parliament of Canada. Retrieved 28 September 2018.
  9. ^ "Legco president sets vote deadline". RTHK. 17 May 2012. Retrieved 17 September 2012.
  10. ^ Procedure if Rules of Procedure do not Provide The Legislative Council – Procedures
  11. ^ "Chapter 3: General procedures". Parliament of New Zealand. 23 November 2011. Retrieved 8 April 2015.
  12. ^ "Erskine May. Paragraph 25.54. The Closure".
  13. ^ a b "Programme motion". Glossary. UK Parliament. Retrieved 22 February 2016.
  14. ^ a b c Koß, Michael (2012). ""The Legitimate Secret." On the Evolution of Parliamentary Agenda Control in Germany" (PDF). pp. 11–15. Retrieved 23 February 2016.
  15. ^ a b c d e f g Lee, Colin (2015). Besly, Nicolas (ed.). "Archibald Milman and the procedural response to obstruction, 1877–1888" (PDF). The Table. 83. Society of Clerks-at-the-Table in Commonwealth Parliaments: 22–44 : 37–43. ISSN 0264-7133.; Redlich, Josef (1908). "The Urgency Procedure and the Introduction of the Closure (1881-1888)". The procedure of the House of Commons; a study of its history and present form. Vol. I. Translated by Steinthal, E. Ernest. Introduction and a Supplementary Chapter by Courtenay Ilbert. London: Archibald Constable. pp. 164–185.
  16. ^ Lyons, F.S.L. (2005). Charles Stewart Parnell, A Biography: The Definitive Biography of the Uncrowned King of Ireland. Gill Books. p. 159. ISBN 9780717163960.
  17. ^ "ORDER—PRIVILEGE—PROTECTION OR PERSON AND PROPERTY (IRELAND) BILL—CLOSURE OF THE DEBATE THIS MORNING". Parliamentary Debates (Hansard). 2 February 1881. pp. HC Deb vol 258 cc7–43. Retrieved 23 February 2016.
  18. ^ "RULES OF DEBATE—DIVISIONS-SUSPENSION OF MEMBERS. (Hansard, 3 February 1881)". Parliamentary Debates (Hansard). 3 February 1881.
  19. ^ "RULES OF DEBATE—DIVISIONS-SUSPENSION OF MEMBERS. (Hansard, 3 February 1881)". Parliamentary Debates (Hansard). 3 February 1881.
  20. ^ "RULES OF DEBATE—DIVISIONS-SUSPENSION OF MEMBERS. (Hansard, 3 February 1881)". HC Deb vol 258 cc.68-156. Parliamentary Debates (Hansard). 3 February 1881. Retrieved 22 February 2016.
  21. ^ "PARLIAMENT—BUSINESS OF THE HOUSE—THE NEW RULES OF PROCEDURE—THE FIRST RESOLUTION (PUTTING THE QUESTION)". Parliamentary Debates (Hansard). 20 February 1882. HC Deb vol 266 cc1124-95. Retrieved 23 February 2016.
  22. ^ "PARLIAMENT—BUSINESS OF THE HOUSE—THE NEW RULES OF PROCEDURE.—RESOLUTION". Parliamentary Debates (Hansard). 24 October 1882. HC Deb vol 274 cc45-69. Retrieved 23 February 2016.
  23. ^ "Parliament—Business of the House—the New Rules of Procedure—First Rule (Putting the Question) [Adjourned debate.] [Nineteenth night.]". Parliamentary Debates (Hansard). 10 November 1882. HC Deb vol 274 cc1206-87. Retrieved 23 February 2016.
  24. ^ "Business of the House (Rules of Procedure)—Rule 1 (Closure of debate).—Resolution. Adjourned Debate. [Sixth night.]". Parliamentary Debates (Hansard). 1 March 1887. HC Deb vol 311 cc916–79. Retrieved 23 February 2016.
  25. ^ a b "I. Programme orders: supplementary provisions (,)". Parliamentary Debates (Hansard). 7 November 2000. HC Deb vol 356 cc213–80. Retrieved 23 February 2016.
  26. ^ "Lords reform: Coalition suffers biggest rebellion". BBC Online. 11 July 2012. Retrieved 23 February 2016.
  27. ^ 55 Congressional Record p. 45 (8 March 1917)
  28. ^ "Filibuster and Cloture". United States Senate. Retrieved 5 March 2010.
  29. ^ See John F. Kennedy's Profiles in Courage (chapter on George Norris) for a description of the event.
  30. ^ "U.S. Senate: Senate Leaders". www.senate.gov. Retrieved 7 December 2023.
  31. ^ "The Senate and the League of Nations". United States Senate. Retrieved 19 November 2008.
  32. ^ "Filibuster and Cloture". United States Senate.
  33. ^ Koger, Gregory Cloture Reform and Party Government in the Senate, 1918–1925, Journal of Politics, Vol. 68, No. 3 (Aug 2006), pp. 708–719.
  34. ^ Times staff, wires (18 November 2008). "Q&A: How does a filibuster work?". St. Petersburg Times. Archived from the original on 2 February 2009. Retrieved 19 November 2008.
  35. ^ "Democrats still in the quest for 60 Senate seats". CNN. 4 November 2008. Retrieved 19 November 2008.
  36. ^ Filibusters and Cloture in the Senate, Richard S. Beth and Stanley Bach, Congressional Research Service, Library of Congress: 23 March 2003, p. 13.
  37. ^ Loevy, Robert D. (1997). The Civil Rights Act of 1964: The Passage of the Law that Ended Racial Segregation SUNY Press. p. 29.
  38. ^ "What is Rule 22?" Archived 21 May 2011 at the Wayback Machine, Rule22 Blog, 5/28/2011.
  39. ^ a b c d e Riddick, Floyd M. (1992). Riddick's Senate Procedure (PDF). Government Printing Office.
  40. ^ Frumin, Aliyah (21 November 2013). "Senate smacks down filibuster". MSNBC. Retrieved 1 October 2022.
  41. ^ Davis, Susan (6 April 2017). "Senate Pulls 'Nuclear' Trigger To Ease Gorsuch Confirmation". NPR. Retrieved 1 October 2022.
  42. ^ United States Senate (4 November 2013). Standing Rules of the Senate (PDF) (Report). pp. 21–23.
  43. ^ Congressional Research Service (7 April 2017). Filibusters and Cloture in the Senate (Report). p. 12.
  44. ^ Snell, Kelsey (3 April 2019). "Senate Rewrites Rules To Speed Confirmations For Some Trump Nominees". NPR. Retrieved 1 October 2022.
  45. ^ Elizabeth Rybicki (19 March 2013). Changes to Senate Procedures at the Start of the 113th Congress Affecting the Operation of Cloture (S.Res. 15 and S.Res. 16) (Report).
  46. ^ Elizabeth Rybicki (19 March 2013). Changes to Senate Procedures at the Start of the 113th Congress Affecting the Operation of Cloture (S.Res. 15 and S.Res. 16) (Report).
  47. ^ "Senate Action on Cloture Motions". United States Senate. Retrieved 22 November 2013.