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The European Union Referendum Act 2015
c. 36
was an Act of the
Parliament of the United Kingdom The Parliament of the United Kingdom is the supreme legislative body of the United Kingdom, the Crown Dependencies and the British Overseas Territories. It meets at the Palace of Westminster, London. It alone possesses legislative suprema ...
that made legal provision for a consultative referendum to be held in the United Kingdom and
Gibraltar ) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gib ...
, on whether it should remain a
member state A member state is a state that is a member of an international organization or of a federation or confederation. Since the World Trade Organization (WTO) and the International Monetary Fund (IMF) include some members that are not sovereign state ...
of the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
or leave the bloc altogether. The Bill was introduced to the
House of Commons The House of Commons is the name for the elected lower house of the bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of parliament. T ...
by
Philip Hammond Philip Hammond, Baron Hammond of Runnymede (born 4 December 1955) is a British politician and life peer who served as Chancellor of the Exchequer from 2016 to 2019, Foreign Secretary from 2014 to 2016, and Defence Secretary from 2011 to 2014. ...
, Foreign Secretary on 28 May 2015. Two weeks later, the second reading of the Bill was supported by MPs from all parties except the SNP; the Bill subsequently passed on its third reading in the Commons on 7 September 2015. It was approved by the
House of Lords The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminste ...
on 14 December 2015, and given Royal Assent on 17 December 2015. The Act came partly into force on the same day and came into full legal force on 1 February 2016. The Act gave effect to a manifesto commitment of the Conservative Party at the general election of May 2015, and was one of the most significant pieces of legislation that was passed by the 2015–17 Parliament. It required the Secretary of State to appoint the day on which the referendum should be held, although it could not be any later than 31 December 2017 and, on 20 February 2016, David Cameron announced that the referendum would take place on 23 June 2016. In the
referendum A referendum (plural: referendums or less commonly referenda) is a direct vote by the electorate on a proposal, law, or political issue. This is in contrast to an issue being voted on by a representative. This may result in the adoption of a ...
, the electorate voted by 51.9 per cent to 48.1 per cent in favour of leaving the EU, on a 72 per cent national turnout. The Act became spent upon the conclusion of the referendum.


Origin

On 1 January 1973, the United Kingdom and Gibraltar joined what was then known as the European Communities, under terms negotiated by the then Conservative Prime Minister
Edward Heath Sir Edward Richard George Heath (9 July 191617 July 2005), often known as Ted Heath, was a British politician who served as Prime Minister of the United Kingdom from 1970 to 1974 and Leader of the Conservative Party from 1965 to 1975. Heath a ...
. In accordance with British constitutional convention, specifically that of
parliamentary sovereignty Parliamentary sovereignty, also called parliamentary supremacy or legislative supremacy, is a concept in the constitutional law of some parliamentary democracies. It holds that the legislative body has absolute sovereignty and is supreme over all ...
, accession was not subject to approval by referendum. Both the Conservative Party and the Labour Party were divided over the issue, and the European Communities Act 1972 was passed due to sufficient Labour abstentions to counteract the number of rebel Tories.BBC TV programme "Europe: Them Or Us: An Island Apart"
– BBC, 12 April 2016
In the run-up to the February 1974 general election, the Labour Party manifesto promised a referendum "on renegotiated terms", which its leader Harold Wilson hoped would end the division of his party. However, the election proved indecisive, and marked the end of Heath's premiership as Prime Minister; Wilson became PM, and called a second election later in the year. After the October 1974 general election, the Labour Party formed a minority administration and held the
referendum A referendum (plural: referendums or less commonly referenda) is a direct vote by the electorate on a proposal, law, or political issue. This is in contrast to an issue being voted on by a representative. This may result in the adoption of a ...
on continued membership the following year, which was approved by 67% of voters. For a few years the issue was largely settled but, with the approval by Parliament of the Single European Act, the
Maastricht Treaty The Treaty on European Union, commonly known as the Maastricht Treaty, is the foundation treaty of the European Union (EU). Concluded in 1992 between the then-twelve Member state of the European Union, member states of the European Communities, ...
and the
Lisbon Treaty The Treaty of Lisbon (initially known as the Reform Treaty) is an international agreement that amends the two treaties which form the constitutional basis of the European Union (EU). The Treaty of Lisbon, which was signed by the EU member sta ...
, there were calls from eurosceptic Members of Parliament for a new UK referendum on continued membership. Conservative Party leader David Cameron announced in January 2013, in what became known as "The Bloomberg speech", a proposal to undertake a renegotiation of the terms of the UK's membership of the EU, and subsequently to hold a UK referendum on its membership of the Union. However, at the time of Cameron's speech, the Conservative Party was in Coalition government with the Liberal Democrats who, along with the Labour Party, were at the time opposed to any new referendum being held. The Conservative Party did not have an overall majority and a private member's bill by Conservative MP James Wharton to legislate an in-out referendum by the end of 2017 was blocked in the
House of Lords The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminste ...
. The proposals were contained in the Conservative Party manifesto for the 2015 United Kingdom general election; the Labour and Lib Dem parties had also made manifesto commitments to an EU referendum. On the Bill's second reading, on 9 June 2015, MPs voted by 544 to 53 in favour of the principle of holding a referendum with only the Scottish National Party opposing the Bill, and by 316 votes to 53 on its third reading in the Commons on 7 September 2015.


The Act

The Act legislated for a referendum to be held in the United Kingdom and Gibraltar on whether to remain a member of the EU, to be conducted by the
Electoral Commission An election commission is a body charged with overseeing the implementation of electioneering process of any country. The formal names of election commissions vary from jurisdiction to jurisdiction, and may be styled an electoral commission, a c ...
and overseen by an appointed "Chief Counting Officer" (CCO) and a "deputy chief counting officer" (DCCO) who declared the final result for the United Kingdom. By regulation the Act ordered the Secretary of State (in this case the Prime Minister) to appoint a date for the holding of the referendum, as long as the date was no later than 31 December 2017, and not on 5 May 2016 or 4 May 2017. The Electoral Commission is the public body under the terms of the Political Parties, Elections and Referendums Act 2000 that was given the task to raise public awareness ahead of polling day, and to oversee the conduct of the referendum.


The referendum


Limitation

This Act required a referendum to be held on the question of the UK's continued membership of the European Union before the end of 2017. Contrary to the impression created by the Government leaflet sent to all households prior to the Referendum, and signed by David Cameron, which stated that the result of the Referendum would be binding and irrevocable, the Bill did not contain any requirement for the UK Government to implement the results of the referendum, nor set a time limit by which a vote to leave the EU should be implemented. Instead, this was a type of referendum known as a pre-legislative or consultative referendum, which enables the electorate to voice an opinion which then influences the Government in its policy decisions. The referendums held in Scotland (1997), Wales (1997) and Northern Ireland (1998) are examples of this type, where opinion was tested before legislation was introduced. The UK does not have constitutional provisions which would require the results of a referendum to be implemented, unlike, for example, Ireland, where the circumstances in which a binding referendum should be held are set out in its constitution. In contrast, the legislation which provided for the referendum held on AV in May 2011 would have implemented the new system of voting without further legislation, provided that the boundary changes also provided for in the Parliamentary Voting System and Constituencies Act 2011 were also implemented. In the event, there was a substantial majority against any change. The 1975 referendum was held after the re-negotiated terms of the UK's EC membership had been agreed by all EC Member States and the terms set out in a command paper which later became known as the
Referendum Act 1975 The Referendum Act 1975 (c. 33), also known simply as the Referendum Act or the Referendum Bill, was an Act of the Parliament of the United Kingdom, which made legal provision for the holding of a non-binding referendum on whether the United King ...
and was passed by both Houses. The Bill became law when it received Royal Assent on 17 December 2015. In accordance with the Act and the public duty of the Electoral Commission, a guide was posted to every household in the UK and Gibraltar in the week beginning of 16 May 2016 by
HM Government ga, Rialtas a Shoilse gd, Riaghaltas a Mhòrachd , image = HM Government logo.svg , image_size = 220px , image2 = Royal Coat of Arms of the United Kingdom (HM Government).svg , image_size2 = 180px , caption = Royal Arms , date_es ...
. The leaflet was titled: "Why the Government believes that voting to remain in the European Union is the best decision for the UK". This leaflet stated: "This is your decision. The government will implement what you decide".


Campaign period

The Act legislated that the official referendum campaign period up until polling day would be of ten weeks' duration (which in the event ran from 15 April to 23 June 2016), with an official "purdah" period lasting four weeks (in the event running from 27 May until polling day) during which all government and public bodies were not permitted to comment or publish information specifically related to the subject of the referendum.


Campaign groups spending

Under this Act and the Political Parties, Elections and Referendums Act 2000, the
Electoral Commission An election commission is a body charged with overseeing the implementation of electioneering process of any country. The formal names of election commissions vary from jurisdiction to jurisdiction, and may be styled an electoral commission, a c ...
had the authority to designate and to provide funding for two official lead campaign groups, one for "Remain" and one for "Leave". Each designated group had access to grants worth up to £600,000 as well as television spots and free leaflet drops. The Act declared that these designated groups were not permitted to spend overall more than £7 million. The Act permitted other registered campaign groups to participate but that their overall spending was limited to a maximum of £700,000. Spending by unregistered groups was limited by the Act to a maximum of £10,000. The Electoral Commission announced the official "Remain" and "Leave" designated groups before the beginning of the official campaign period (on 13 April 2016) ahead of the deadline on 14 April 2016:
Britain Stronger in Europe Britain Stronger in Europe (formally The In Campaign Limited) was an advocacy group which campaigned in favour of the United Kingdom's continued membership of the European Union in the 2016 British referendum. It was launched at the Old Trum ...
for "Remain" and
Vote Leave Vote Leave was a campaigning organisation that supported a "Leave" vote in the 2016 United Kingdom European Union membership referendum. On 13 April 2016 it was designated by the Electoral Commission as the official campaign in favour of leav ...
for "Leave".


Political parties spending

Under the Act and the Political Parties, Elections and Referendums Act 2000, political parties were permitted to provide funding for the referendum, although their spending was limited according to their performance at the 2015 general election and, under the rules, the political parties were limited to the maximum of each amount as follows: *Conservative Party £7 million *Labour Party £5.5 million *
UKIP The UK Independence Party (UKIP; ) is a Eurosceptic, right-wing populist political party in the United Kingdom. The party reached its greatest level of success in the mid-2010s, when it gained two members of Parliament and was the largest p ...
£4 million * Liberal Democrats £3 million * SNP £700,000 All other political parties who received less than 5% of the national vote share had their maximum spending limited to no more than £700,000.


Individual spending

Unless individuals are officially registered with the Electoral Commission, the maximum limit for spending in the referendum was to be no more than £10,000.


Referendum question

The question that appeared on ballot papers in the referendum before the electorate under the Act was (in English): with the responses to the question to be marked with a single (X): and in Welsh: with the responses (to be marked with a single (X)):


Original proposed question

Originally the Bill set out the question that was to appear on ballot papers as: and in Welsh: permitting a simple YES/NO answer. The original proposed question was similar to the question voters were asked in the original 1975 EC membership referendum. However, during subsequent research by the
Electoral Commission An election commission is a body charged with overseeing the implementation of electioneering process of any country. The formal names of election commissions vary from jurisdiction to jurisdiction, and may be styled an electoral commission, a c ...
in their assessment which was published in September 2015 found that "members of the public feel the wording was not balanced and there was a perception of bias" and proposed a change in the wording of the question. The proposed change was accepted by the government, shortly before the Bill's third reading.


Voting areas

Under the provisions of the Act, the designation of a "voting area" (also known by some as "Counting areas") on the day of the referendum was to be overseen by "Counting officers" (CO) who were to declare the results of their local areas within the United Kingdom and Gibraltar as follows: *A district in England for which there is a district council *A county in England in which there are no districts with councils (
Unitary authority A unitary authority is a local authority responsible for all local government functions within its area or performing additional functions that elsewhere are usually performed by a higher level of sub-national government or the national governmen ...
) *A
London borough The London boroughs are the 32 local authority districts that together with the City of London make up the administrative area of Greater London; each is governed by a London borough council. The present London boroughs were all created at ...
*The
City of London The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
(including the Inner and Middle Temples) *The Isles of Scilly *A county or county borough in Wales *A local government area in Scotland *Northern Ireland *Gibraltar There were a total of 382 voting areas. 326 in England, 32 in Scotland, 22 in Wales and single areas for Northern Ireland and Gibraltar. The local counts in the voting areas began from 2200 BST (
Western European Summer Time Western European Summer Time (WEST, UTC+01:00) is a summer daylight saving time scheme, 1 hour ahead of Greenwich Mean Time and Coordinated Universal Time. It is used in: * the Canary Islands * Portugal (including Madeira but not the Azores) * ...
) on Thursday 23 June 2016 after all polling stations had closed. Recounts within "voting areas" were permitted when circumstances require under the instructions of the "Counting officers (CO)." It was the first time that a United Kingdom referendum was counted overnight as both the previous 1975 EC Referendum and the 2011 AV Referendum were counted during the course of the following day after polling stations closed.


Regional counts

The Act also provided provision for the results from the "voting areas" to fed into twelve "regional counts" to be overseen by "Regional counting officers" (RCO) who were appointed in the following areas and declared the results for their areas as used under the
European Parliamentary Elections Act 2002 The European Parliamentary Elections Act 2002 (c. 24) was an Act of the Parliament of the United Kingdom governing elections to the European Parliament. The Act divided the United Kingdom into various regions to which were allocated a number of ...
: * East Midlands (40 voting areas) * East of England (47 voting areas) * Greater London (33 voting areas) *Northern Ireland (1 voting area) * North East England (12 voting areas) * North West England (39 voting areas) *
Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ...
(32 voting areas) *
South East England South East England is one of the nine official regions of England at the first level of ITL for statistical purposes. It consists of the counties of Buckinghamshire, East Sussex, Hampshire, the Isle of Wight, Kent, Oxfordshire, Berkshi ...
(67 voting areas) *
South West England South West England, or the South West of England, is one of nine official regions of England. It consists of the counties of Bristol, Cornwall (including the Isles of Scilly), Dorset, Devon, Gloucestershire, Somerset and Wiltshire. Cities ...
(also including
Gibraltar ) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gib ...
) (38 voting areas) *
Yorkshire and the Humber Yorkshire and the Humber is one of nine official regions of England at the first level of ITL for statistical purposes. The population in 2011 was 5,284,000 with its largest settlements being Leeds, Sheffield, Bradford, Hull, and York. It is ...
(21 voting areas) *
Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
(22 voting areas) * West Midlands (30 voting areas) For the purposes of the referendum, the local result from Gibraltar was fed into the South West England regional count. The regions each declared their results once all local voting areas had declared their local results early on Friday 24 June 2016. There was no provision under the Act for any national or regional recounts by the Chief Counting Officer and Regional Counting Officers.


Franchise

The right to vote in the referendum applied to UK and Gibraltar residents who are British, Irish and Commonwealth citizens, in accordance with the provisions of the
Representation of the People Act 1983 The Representation of the People Act 1983 (c. 2) is an Act of the Parliament of the United Kingdom. It changed the British electoral process in the following ways: * Amended the Representation of the People Act 1969. * Stated that a convicted pe ...
and the Representation of the People Act 2000. Members of the
House of Lords The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminste ...
were able to vote in the referendum. Citizens of other EU countries resident in the UK were not allowed to vote unless they were citizens of Ireland,
Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
or
Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is ge ...
. The same Acts only permitted UK nationals who had lived overseas for less than 15 years to vote, thus excluding a large number of British Europeans who were directly concerned, from voting either. This meant that a total of around 46.5 million people would be eligible to cast a vote in the referendum. Voting on the day of the referendum was from 07:00 to 22:00 BST (
Western European Summer Time Western European Summer Time (WEST, UTC+01:00) is a summer daylight saving time scheme, 1 hour ahead of Greenwich Mean Time and Coordinated Universal Time. It is used in: * the Canary Islands * Portugal (including Madeira but not the Azores) * ...
) (07:00 to 22:00
Central European Summer Time Central European Summer Time (CEST), sometimes referred to as Central European Daylight Time (CEDT), is the standard clock time observed during the period of summer daylight-saving in those European countries which observe Central European Time ...
in Gibraltar) in some 41,000 polling stations staffed by over 100,000 officials. Each polling station was specified to have no more than 2,500 registered voters. Also under the provisions of the Representation of the People Act 2000 postal ballots were also permitted in the referendum and were sent out to eligible voters some three weeks ahead of the vote (2 June 2016). Residents of the
Isle of Man ) , anthem = "O Land of Our Birth" , image = Isle of Man by Sentinel-2.jpg , image_map = Europe-Isle_of_Man.svg , mapsize = , map_alt = Location of the Isle of Man in Europe , map_caption = Location of the Isle of Man (green) in Europe ...
, and the other Crown Dependencies
Jersey Jersey ( , ; nrf, Jèrri, label= Jèrriais ), officially the Bailiwick of Jersey (french: Bailliage de Jersey, links=no; Jèrriais: ), is an island country and self-governing Crown Dependency near the coast of north-west France. It is the l ...
and Guernsey, were not be eligible to vote in the referendum, as those territories are not part of the UK or of the EU The minimum age for voters in the referendum was 18 years, in accordance with Representation Acts (above). A
House of Lords The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminste ...
amendment proposing to lower the minimum age to 16 years was rejected.


Calling of referendum

On the morning of Saturday 20 February 2016 Prime Minister David Cameron held a special cabinet meeting in 10 Downing Street with his fellow Ministers (the first such meeting to be held on a Saturday since 3 April 1982 at the start of the Falklands War). After the meeting, he announced outside the door of No 10 that the referendum would be held on Thursday 23 June 2016. On Monday 22 February 2016, Parliament enacted secondary legislation to authorise the holding of the referendum on that date.


Eligible voters

On Tuesday 21 June 2016, the Electoral Commission announced the provisional official number of eligible voters who were entitled to vote in the referendum on Thursday 23 June in each of the constituent countries of the United Kingdom and Gibraltar following the closing date for registration on Thursday 9 June 2016 (these figures include all Commonwealth and Irish citizens along with members of the
House of Lords The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminste ...
who are not normally eligible to vote in
UK general elections This is a list of United Kingdom general election, general elections (elections for the House of Commons of the United Kingdom, UK House of Commons) since the first in 1802. The members of the 1801–1802 Parliament had been elected to the form ...
). The final number of eligible voters was published after 9 pm on Thursday 23 June 2016 by the Electoral Commission. The following shows both the provisional figures and the final figures in heavy bold brackets.


English regions (together with Gibraltar)


Constituent countries


Referendum result

The national result was declared by Chief counting officer (CCO) and the then chair of the
Electoral Commission An election commission is a body charged with overseeing the implementation of electioneering process of any country. The formal names of election commissions vary from jurisdiction to jurisdiction, and may be styled an electoral commission, a c ...
Jenny Watson at Manchester Town Hall on Friday 24 June 2016 at 07:20 BST after all 382 voting areas and the 12 regions of the United Kingdom had declared their results. Of the voting areas a total of 263 returned majority votes in favour of leaving the European Union whilst 119 returned majority votes in favour of continued European Union membership including every council area within Scotland on a national turnout of 72% and in the voting regions Scotland, Northern Ireland and Greater London voted to remain whilst all other regions including Wales voted to leave.


Results by regions


Results by constituent countries & Gibraltar


Legislative consequences

The Act made no provision for the result to be legally binding on the government or on any future government; legally it was merely advisory. The result of the referendum required a single majority vote of the United Kingdom and Gibraltar with no super majorities, no double majorities of the constituent countries, nor any minimum turnout threshold required for the vote to pass. The Act did not specify any specific consequences that would follow the result of the referendum. In the event of a "Leave" vote, it was expected that the government would decide whether, when, and under what circumstances, the UK would invoke Article 50 of the Treaty on European Union to begin a two-year process of negotiations for Britain to leave the EU. Since the Act was also silent on the question of executive prerogative, the question of whether the government or Parliament was entitled to invoke Article 50 was the subject of court proceedings (''Miller's'' case). James Eadie QC, acting for the government, submitted in his address to the court that, because the Act is silent, it would imply that Parliament chose not to limit prerogative powers in this matter. On 3 November 2016, the High Court in London ruled that it is the responsibility of Parliament (and not of the Government unilaterally) to decide whether, when, and how the UK should set aside legislation (in this case, the European Communities Act 1972 that makes the UK a member of the EU). The court held that the referendum was "advisory for the lawmakers in Parliament", enabling the electorate to influence Parliament in its policy decisions. In interpreting the intent of the Act, the court considered the precedents of previous UK referendums. As a consequence, the
European Union (Notification of Withdrawal) Bill 2017 The European Union (Notification of Withdrawal) Act 2017 (c. 9) was an Act of the Parliament of the United Kingdom to empower the Prime Minister to give to the Council of the European Union the formal notice – required by Article 50 of the ...
was introduced into Parliament to gain Parliament's consent for the invocation of Article 50. European Union law remains enforceable in the United Kingdom until or unless the European Communities Act 1972 is repealed. In October 2016, Theresa May promised a " Great Repeal Bill", which would repeal the European Communities Act and restate in
UK law The United Kingdom has four legal systems, each of which derives from a particular geographical area for a variety of historical reasons: English and Welsh law, Scots law, Northern Ireland law, and, since 2007, purely Welsh law (as a result o ...
all enactments previously in force under
EU law European Union law is a system of rules operating within the member states of the European Union (EU). Since the founding of the European Coal and Steel Community following World War II, the EU has developed the aim to "promote peace, its val ...
. This bill was expected to be introduced in the May 2017 parliamentary session and enacted before or during the Article 50 negotiations. It would not come into force until the date of exit. It would smooth the transition by ensuring that all laws remain in force until specifically repealed. This ultimately became the European Union (Withdrawal) Act 2018.


Outcome

Following the referendum result and the verdict of the
R (Miller) v Secretary of State for Exiting the European Union ''R (Miller) v Secretary of State for Exiting the European Union'' is a United Kingdom constitutional law case decided by the United Kingdom Supreme Court on 24 January 2017, which ruled that the British Government (the executive) might not i ...
case in January 2017 the
UK Government ga, Rialtas a Shoilse gd, Riaghaltas a Mhòrachd , image = HM Government logo.svg , image_size = 220px , image2 = Royal Coat of Arms of the United Kingdom (HM Government).svg , image_size2 = 180px , caption = Royal Arms , date_est ...
led by Prime Minister
Theresa May Theresa Mary May, Lady May (; née Brasier; born 1 October 1956) is a British politician who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2016 to 2019. She previously served in David Cameron's cabi ...
passed the European Union (Notification of Withdrawal) Act 2017 which legally allowed the UK to formally begin the process and formally notified the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
of the United Kingdom's intention to leave both the European Union and the
European Atomic Energy Community The European Atomic Energy Community (EAEC or Euratom) is an international organisation established by the Euratom Treaty on 25 March 1957 with the original purpose of creating a specialist market for nuclear power in Europe, by developing nucl ...
by triggering Article 50 of the Treaty on European Union on Wednesday 29 March 2017.


See also

* Aftermath of the 2016 United Kingdom European Union membership referendum * Acts of Parliament of the United Kingdom relating to the European Communities and the European Union *
R (Miller) v Secretary of State for Exiting the European Union ''R (Miller) v Secretary of State for Exiting the European Union'' is a United Kingdom constitutional law case decided by the United Kingdom Supreme Court on 24 January 2017, which ruled that the British Government (the executive) might not i ...
* European Union (Referendum) Bill 2013 *
European Communities Act 1972 (UK) The European Communities Act 1972c 68, also known as the ECA 1972, was an Act of the Parliament of the United Kingdom which made legal provision for the accession of the United Kingdom to the three European Communities the European Economic ...
* European Economic Area Act 1993 *
Referendum Act 1975 The Referendum Act 1975 (c. 33), also known simply as the Referendum Act or the Referendum Bill, was an Act of the Parliament of the United Kingdom, which made legal provision for the holding of a non-binding referendum on whether the United King ...
* 1975 United Kingdom European Communities membership referendum *
Withdrawal from the European Union Withdrawal from the European Union is the legal and political process whereby an EU member state ceases to be a member of the Union. Article 50 of the Treaty on European Union ( TEU) states that "Any Member State may decide to withdraw from t ...
*
United Kingdom withdrawal from the European Union Brexit (; a portmanteau of "British exit") was the withdrawal of the United Kingdom (UK) from the European Union (EU) at 23:00 GMT on 31 January 2020 (00:00 1 February 2020 CET).The UK also left the European Atomic Energy Community (EAEC ...
*
Euroscepticism Euroscepticism, also spelled as Euroskepticism or EU-scepticism, is a political position involving criticism of the European Union (EU) and European integration. It ranges from those who oppose some EU institutions and policies, and seek refor ...
*
Euroscepticism in the United Kingdom Euroscepticism in the United Kingdom is a continuum of belief ranging from the opposition to certain political policies of the European Union to the complete opposition to the United Kingdom’s membership of the European Union. It has been a s ...
*
European Parliamentary Elections Act 2002 The European Parliamentary Elections Act 2002 (c. 24) was an Act of the Parliament of the United Kingdom governing elections to the European Parliament. The Act divided the United Kingdom into various regions to which were allocated a number of ...
* European Union (Amendment) Act 2008 * 2015–16 United Kingdom renegotiation of European Union membership *
Vote Leave Vote Leave was a campaigning organisation that supported a "Leave" vote in the 2016 United Kingdom European Union membership referendum. On 13 April 2016 it was designated by the Electoral Commission as the official campaign in favour of leav ...
* Labour Leave *
Leave.EU Leave.EU was a political campaign group that was first established to support the United Kingdom's withdrawal from the European Union in the 2016 United Kingdom European Union membership referendum, June 2016 referendum. Founded in July 2015 as ...
*
Britain Stronger in Europe Britain Stronger in Europe (formally The In Campaign Limited) was an advocacy group which campaigned in favour of the United Kingdom's continued membership of the European Union in the 2016 British referendum. It was launched at the Old Trum ...
* Labour in for Britain * European Union (Notification of Withdrawal) Act 2017 *
United Kingdom invocation of Article 50 of the Treaty on European Union On 29 March 2017, the United Kingdom (UK) invoked Article 50 of the Treaty on European Union (TEU) which began the member state's withdrawal, commonly known as Brexit, from the European Union (EU). In compliance with the TEU, the UK gave for ...
* Bloomberg speech


References

{{DEFAULTSORT:European Union Referendum Bill 2015-16 Acts of the Parliament of the United Kingdom relating to the European Union 2015 in the European Union United Kingdom Acts of Parliament 2015 Referendums in the United Kingdom Euroscepticism in the United Kingdom 2016 United Kingdom European Union membership referendum Brexit Referendums related to the European Union