On 22 October, the British Parliament agreed to review the Brexit Act. But she decided it took longer than the British Prime Minister had proposed. This means that it is no longer possible to withdraw with an agreement on the planned date of Brexit, 31 October. The Brexit deal will not come into force until the Brexit law is passed by the British Parliament. After passing its second reading by a sovereign 358 votes to 234, the withdrawal agreement is on track to complete its adoption by both houses of Parliament in time for Brexit to take place at the end of January. On 23 March 2018, EU and UK negotiators reached an agreement on the draft withdrawal agreement allowing the European Council (Article 50) to adopt guidelines for the framework for future eu-UK relations. On the issue of the Irish border, there is a protocol on Northern Ireland (the „backstop”) which is attached to the agreement and establishes a position of withdrawal which will only come into force in the absence of effective alternative provisions before the expiry of the transition period. In this case, the UK will eclipse the EU`s common external tariff and Northern Ireland will stick to aspects of the internal market until such an event is carried out. Neither party can unilaterally withdraw from this customs union. The aim of this backstop agreement is to avoid a „hard” border in Ireland, where customs controls are needed.
 The British Parliament rejects the agreement for the third time. Britain has until 12 April 2019 to decide how to proceed: the agreement was revised as part of the Johnson Ministry renegotiation in 2019. The amendments fit about 5% of the text.  On 15 January 2019, the House of Commons voted against the Brexit withdrawal agreement by 230 votes to the largest vote against the British government.  The government may survived a vote of confidence the next day.  On March 12, 2019, the House of Commons voted 149 votes against the agreement, the fourth-biggest defeat of the government in the history of the House of Commons.  A third vote on the Brexit withdrawal agreement, widely expected on 19 March 2019, was rejected by the House of Commons spokesman on 18 March 2019, on the basis of a parliamentary convention of 2 April 1604, which prevented British governments from forcing the House of Commons to vote several times on a subject already voted on by the House of Commons.    An abbreviated version of the withdrawal agreement, in which the annex political statement had been withdrawn, consisted of the test of „substantial amendments,” so that a third vote was held on 29 March 2019, but was rejected by 58 votes.  Agreement on the withdrawal of the United Kingdom from Great Britain and Northern Ireland from the European Union and the European Atomic Energy Community, JO L 347 of 29.11.2006, p. 1.
JO L 29 31.01.19, p. 7-187 The new relationship will not be clear until negotiations have concluded at the end of the transition period.