On 24 december, reached agreement in principle of Brexit is published inthe website of the european commission.
The link includes, among other documents:
Below provides spanish guides that specify step-by-step process to the markUKCA [PDF] [251 KB]andUKNI [PDF] [270 KB].
It also attached links to web pages of the united kingdom government where you can find guides of label use UKCA and put in the market of products:
Further in theSite of the united kingdomyou can find the webinarios (in english) where will explain the use of the brand UKCA and requirements of placing on the market of products in The United Kingdom and northern ireland.
Thanks for your comments.