The reform of competition law in the UAE marks a significant step towards a more modern and transparent regulatory framework. The introduction of clearly defined merger control thresholds, the elimination of broad sectoral exemptions, and the substantial tightening of penalties reflect a more regulated competitive environment. The law came into force on December 29, 2023, while the new merger control thresholds have been in effect since March 31, 2025. Companies must therefore ensure full compliance with these new provisions as of that date.