The withdrawal agreement provides for a transitional period until 31 December 2020, during which time the UK will remain in the internal market, to ensure the smooth flow of trade until a long-term relationship is concluded. If no agreement is reached by then, the UK will leave the single market without a trade deal on 1 January 2021. The withdrawal agreement is closely linked to a non-binding political declaration on future relations between the EU and the UK. Immediately after the announcement of a revised withdrawal agreement on October 17, 2019, Labour, the Liberal Democrats and the DUP said they could not support the new agreement. [30] After the WAB becomes law, the withdrawal agreement must also be ratified by the European Parliament. On 6 September 2020, the Financial Times reported that the UK government was considering drafting new laws to circumvent the protocol of the Northern Ireland Withdrawal Agreement. [45] The new law would give ministers the power to determine which state aid should be notified to the EU and to define which products at risk of being transferred from Northern Ireland to Ireland (the withdrawal agreement stipulates that in the absence of a reciprocal agreement, all products are considered vulnerable). [47] The government defended this approach and stated that the legislation was in accordance with protocol and that it had only “clarified” the volumity in the protocol. [48] Ursula von der Leyen warned Johnson not to violate international law and said that the implementation of the withdrawal agreement by Britain was a “precondition for any future partnership”.

[49] On 8 September, the Minister of Foreign Affairs for Northern Ireland, Brandon Lewis, told the British Parliament that the government`s internal market bill would “violate international law”.” [50] On the European Union side, the European Parliament also approved the ratification of the agreement on 29 January 2020[40] and the Council of the European Union approved the conclusion of the agreement by e-mail on 30 January 2020. [42] That is why, on 30 January 2020, the European Union also tabled its instrument for ratification of the agreement, concluding the agreement[43] 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. 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. The agreement was revised as part of the Johnson Department renegotiation in 2019.