The Financial Conduct Authority (FCA) has*published near-final rules and guidance that will apply in the event the UK leaves the EU without an implementation period.* As most of the changes proposed will be made under powers given to the FCA under the EU (Withdrawal) Act, they are subject to approval by the Treasury.*
https://www.fca.org.uk/news/press-re...no-deal-brexit
https://www.fca.org.uk/news/press-re...no-deal-brexit