Major UK fast fashion retailers Asos, Boohoo, and Asda have been compelled by the regulator to clarify their green claims after accusations of greenwashing. This move comes as part of a broader crackdown on misleading environmental claims in the industry. Following the regulatory action, Asda, Asos, and Boohoo announced new rules to ensure clarity on their green credentials. The Competition and Markets Authority (CMA) has been instrumental in this initiative, aiming to prevent companies from making unfounded environmental claims. This development indicates a significant shift towards transparency and accountability in the fast fashion sector.