Q&As
In the context of Brexit, what is meant by the ‘transition or implementation period’?
The term ‘transition or implementation period’ is used in the Agreement on the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union and the European Atomic Energy Community (Withdrawal Agreement) to refer to the period during which the transitional arrangements in the Withdrawal Agreement apply.
These transitional arrangements are set out in Part Four of the Withdrawal Agreement and are intended to govern the relationship between the UK and the EU for a specific time-limited period after exit day (11 pm on 31 January 2020). The Withdrawal Agreement refers to this period as the ‘transition period’. The UK government prefers the term ‘implementation period’ and this is reflected in the European Union (Withdrawal Agreement) Act 2020 (EU(WA)A 2020), which implements the Withdrawal Agreement in UK law.
Although the UK and the EU prefer to use different terms, they refer to the same period, hence Article 126 of the Withdrawal Agreement refers initially to the ‘transition or implementation period’. This period is
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