On 15 January 2019, the House of Commons voted with 230 votes against the Brexit withdrawal agreement the largest vote against the British government in history.  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    An abbreviated version of the withdrawal agreement, in which the annex political statement had been withdrawn, consisted of the test of „substantial amendments,“ so that a third vote was held on 29 March 2019, but was rejected by 58 votes.  The agreement was revised as part of the Johnson Department renegotiation in 2019. MEPs rejected Theresa May`s EU withdrawal deal on the day Britain was due to leave the EU. „The benefits of the withdrawal agreement, including a transitional period, will not be replicated in a non-agreement scenario. Mini sectoral agreements are not an option. The agreement also provides for a transitional period, which will last until 31 December 2020 and can be extended by mutual agreement. During the transitional period, EU legislation will continue to apply to the UK (including participation in the European Economic Area, the internal market and the customs union) and the UK will continue to contribute to the EU budget, but the UK will not be represented in EU decision-making bodies.
The transition period will give businesses time to adapt to the new situation and the new era, so that the British and European governments can negotiate a new trade agreement between the EU and the UK.  The withdrawal agreement also contains provisions for the United Kingdom to leave the Convention setting the status of European schools, with the United Kingdom bound by the Convention and its accompanying regulations on accredited European schools until the end of the last academic year of the transition period, i.e. at the end of the spring semester 2020-2021.  The Declaration on Future Relations between the European Union and the United Kingdom, also known as the Political Declaration, is a non-binding declaration that was negotiated and signed at the same time as the binding and broader withdrawal agreement on the withdrawal of the United Kingdom from the European Union (EU), known as Brexit, and at the end of the transition period. They also share the aim of „avoiding checks at Ports and Airports in Northern Ireland.“