The agreement was revised as part of the Johnson Department renegotiation in 2019. The amendments fit about 5% of the text.  After an unprecedented vote on 4 December 2018, MEPs ruled that the British Government was not complying with Parliament because it refused to give Parliament full legal advice on the impact of its proposed withdrawal conditions.  The focus of the consultation was on the legal effect of the «backstop» agreement for Northern Ireland, the Republic of Ireland and the rest of the United Kingdom with regard to the CUSTOMS border between the EU and the United Kingdom and its impact on the Good Friday agreement that led to the end of the unrest in Northern Ireland, including whether , according to the proposals, the UK would be certain that it would be able to leave the EU in a practical sense. The British Parliament approved the draft agreement by adopting on 23 January 2020 the implementing laws (the 2020 Withdrawal Agreement Act) of the European Union (withdrawal agreement). Following the signing of the agreement, the UK Government adopted and tabled the UK`s ratification instrument on 29 January 2020.  The agreement was ratified by the Council of the European Union on 30 January 2020, after approval by the European Parliament on 29 January 2020. The UK`s withdrawal from the EU came into force on 31 January 2020 at 11 .m GMT, when the withdrawal agreement came into force in accordance with Article 185. The declaration on the future relationship between the European Union and the United Kingdom, also known as the Political Declaration, is a non-binding declaration, negotiated and signed at the same time as the mandatory and broader withdrawal agreement on the uk`s withdrawal from the European Union (EU), known as Brexit, and the planned end of the transition period. On the European Union side, the European Parliament also approved the ratification of the agreement on 29 January 2020 and the Council of the European Union approved the conclusion of the agreement by e-mail on 30 January 2020.  That is why, on 30 January 2020, the European Union also tabled its instrument for ratification of the agreement, concluding the agreement and allowing it to enter into force on the date of the UK`s withdrawal from the EU on 31 January 2020, at 11 .m GMT. The 2019 revisions also adapted elements of the political declaration and replaced the word «appropriate» with «appropriate» with respect to labour standards. According to Sam Lowe, a trade fellow at the Centre for European Reform, the amendment excludes labour standards from dispute resolution mechanisms.
 In addition, the Equal Competition Mechanism has been postponed from the legally binding withdrawal agreement to the political declaration, and the line of the political statement that «the United Kingdom will consider taking into account alignment with trade union rules in the relevant areas» has been removed.  This guide to British law focuses on current legal research.