UKCA (United Kingdom Conformity Assessed) is a new UK product marking used to indicate that products comply with the regulations and legal requirements of the UK market. This marking came into use on January 1, 2021, following the UK's exit from the European Union (Brexit), as a replacement for the EU's CE marking. The UKCA marking applies to most goods sold in England, Scotland, and Wales that previously required the CE marking. It covers a wide range of product categories, including toys, electrical equipment, construction products, and personal protective equipment. Manufacturers need to ensure that their products comply with applicable UK technical regulations and undergo the appropriate conformity assessment procedures when necessary. If a product requires third-party assessment, this assessment must be carried out by a UK-recognized body. Although the UKCA marking is now in effect, the UK government has provided a transition period to allow businesses time to adapt to the new requirements. During the transition period, for most products, the CE marking is still accepted in the UK market.