As the UK leaves the EU and the Single Market, it recognises the need for a new and fair balance of rights and responsibilities. The UK can no longer operate under the EU’s “passporting” regime, as this is intrinsic to the Single Market of which it will no longer be a member.
In addition, given the importance of financial services to financial stability, both the UK and the EU will wish to maintain autonomy of decision-making and the ability to legislate for their own interests. For example, in some cases, the UK will need to be able to impose higher than global standards to manage its financial stability exposure. In other areas, the UK market contains products and business models that are different to those found elsewhere in the EU, and regulation would need to reflect these differences. The decision on whether and on what terms the UK should have access to the EU’s markets will be a matter for the EU, and vice versa. However, a coordinated approach leading to compatible regulation is also essential for promoting financial stability and avoiding regulatory arbitrage.
The full Brexit white paper is available at https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/724982/The_future_relationship_between_the_United_Kingdom_and_the_European_Union_WEB_VERSION.pdf