On 24 December was reached an agreement in principle of Brexit which is published on the website of the European commission.
The link includes, among other documents:
Also attached are links to the UK Government's wesites where you can find guides for the use of the UKCA mark and the placing on the market of products:
Additionally, on the UK website you can find a program of webinars where the use of the UKCA mark and the requirements for putting products on the market in the UK and Northern Ireland will be explained.
Thanks for your comments.