On 27 March 2024, the UK Competition and Markets Authority (CMA) announced that fashion retailers ASOS, Boohoo and George at Asda (the Retailers) has signed undertakings to ensure that the environmental claims they make are accurate and clear (the Undertakings).  The announcement was accompanied by an open letter to the fashion retail sector (the Letter).  The  Letter warns businesses to act in accordance with the CMA’s 2021 Green Claims Code and to take note of the Undertakings, or risk incurring significant monetary penalties once the Digital Markets, Competition and Consumers Bill comes into force (see our previous blog posts here, here and here).  The CMA also indicated that it will be updating the Green Claims Code with specific guidance for the fashion sector.