Regulation (EU) 2024/1689 laying down harmonised rules on artificial intelligence (the EU AI Act) was published in the Official Journal of the EU on 12 July 2024, setting out a cross-sectoral regulatory approach to the use of artificial intelligence (AI) systems across the EU. The intention is to introduce a harmonised approach to AI regulation across the EU, facilitating a ‘uniform legal framework in particular for the development, marketing and use of AI in conformity with EU values’ as well as mechanisms at EU level to enforce those rules. This Practice Note considers the EU AI Act, its background and scope and the rules applying to the different categories of AI Systems such as prohibited AI systems, High-Risk AI Systems, Minimal Risk AI Systems and Limited Risk AI Systems. It covers the promotion of regulatory sandboxes and the enforcement of the EU AI Act. It also provides practical steps for compliance with the EU AI Act.