UK Internal Market


About the Inquiry


During its inquiry into Common Frameworks the Committee heard that when the UK leaves the European Union (EU) then EU internal market and its principles (such as proportionality, fundamental rights, equality before the law and subsidiarity) will no longer apply. The UK and Devolved Governments have agreed that, post-Brexit, Common Frameworks are necessary "to enable the functioning of the UK internal market, while acknowledging policy divergence". Common frameworks are proposed in some policy areas to provide common policy and regulatory approaches between the UK and Devolved Governments, post-Brexit.

Whilst at EU level the internal market is defined through treaties and legislation it is not clear what the UK equivalent is. The Committee has therefore agreed to undertake an inquiry into the UK Internal Market to understand what it is and how it might operate, post-Brexit.



Preliminary Evidence Session - 19 June 2019

The Committee held an initial discussion to explore aspects of the UK internal market on 19 June 2019. The written submissions provided by participating witness can be accessed via the links below;

Professor Aileen McHarg, Professor of Public Law, University of Strathclyde (204 KB PDF)

Professor Michael Keating, Chair in Scottish Politics, University of Aberdeen (180 KB PDF)

Dr Viviane Gravey, Lecturer, School of History, Anthropology, Philosophy and Politics, Queen's University Belfast (272 KB PDF)

Professor Michael Dougan, Professor of European Law and Jean Monnet Chair in EU Law, University of Liverpool (181 KB PDF) 

A summary of key issues arising from the discussion is available here

The Official Report of the meeting is available here

An Additional written submission from Professor David Bell and Willem Sas, University of Stirling, can be accessed here 

Adviser Briefing

Comparative Research

The Committee has also commissioned comparative research on how internal markets operate in  

Summary of comparative research (91KB PDF)

Call for views

The UK Internal Market a call for views closed on Friday 28 February 2020, read more here.


Letter from the Cabinet Secretarry for Constitution, Europe and External Affairs regarding the letter he wrote to the Chancellor of the Duchy of Lancaster, 8 July 2020 (444KB PDF)

Letter from the Cabinet Secretary for the Constitution, Europe and External Affairs with its initial response to the UK Governement's Internal Market White paper, 12 August 2020 (569KB PDF) 

Letter from Cabinet Secretary for Constitution, Europe and External Affairs on UK Internal Market Act 2020, 12 January 2021 (266KB PDF)


Finance and Constitution Committee Consultation Response to the UK Government Internal Market White Paper, 13 August 2020 (286KB pdf) 

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