Brexit timeline—transition [Archived]

The following Public Law practice note provides comprehensive and up to date legal information covering:

  • Brexit timeline—transition [Archived]
  • Brexit timeline—impact of Coronavirus (COVID-19)
  • Brexit timeline—2020 (UK-EU transition/implementation period priorities and future relationship negotiations)
  • Beyond Brexit—2020 (UK transition/implementation period priorities outside the EU)

Brexit timeline—transition [Archived]

ARCHIVED: This Practice Note has been archived and is not maintained.

On 23 June 2016, the UK held a referendum on its membership of the EU, with a majority voting in favour of the UK leaving the EU. On 29 March 2017, the UK Prime Minister gave formal notification of the UK's intention to withdraw from the EU, commencing the withdrawal process under Article 50 TEU, see: Brexit: UK Article 50 TEU notification starts the clock—what happens now?

On 31 January 2020, the UK’s formal withdrawal from the EU took effect and the UK ceased to be an EU Member State. Exit day marked the end of the withdrawal period under Article 50 TEU and the start of a time-limited transition/implementation period, during which the transitional arrangements provided in Part 4 of the Withdrawal Agreement applied.

The transitional arrangements provided a standstill period during which the UK and EU worked to implement the Withdrawal Agreement and negotiate an agreement on the legal terms of their future relationship, to take effect after the implementation period. The transition period ended on 31 December 2020.

This Practice Note sets out the timeline of key events and updates (in reverse chronological order) during the transition period, focussing in particular on the implementation of the Withdrawal Agreement and the negotiations on the future UK-EU relationship. It also contains a

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