The agreement was revised as part of the Johnson Department renegotiation in 2019. The amendments fit about 5% of the text Citizens` rights provisions were adopted by Britain and the EU in the draft withdrawal agreement in March 2018. There are no substantial changes or additions, except in the rights provisions of nationals of Iceland, Liechtenstein, Norway and Switzerland. Part 6 relates to the institutional provisions underlying the agreement and how to resolve VA disputes. The main changes to Part 6 of the March 2018 draft relate to disputes related to the agreement itself, which the Commission had originally proposed, should be resolved by the ECJ if they could not be resolved in the Joint Committee. Instead, the November draft proposes, in Article 170, that all disputes that are not settled in the Joint Committee be referred to an independent arbitration tribunal which will give a binding decision on the dispute. However, where litigation requires the interpretation of terms or provisions of EU law, Article 174 obliges the Tribunal to refer them to the ECJ in order to interpret in a binding manner those terms or provisions which the Tribunal must then apply. 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.  On 15 November 2018, the day after the agreement was presented and the support of the British government cabinet, several members of the government resigned, including Dominic Raab, Secretary of State for leaving the European Union.  The 2019 revisions also adapted elements of the political statement that replaced the word „appropriate“ with „appropriate“ with respect to labour standards.