The European Commission has decided to refer the United Kingdom to the Court of Justice of the European Union for alleged failures in implementing EU free movement law, which continue to affect EU citizens under the Withdrawal Agreement. The referral, announced on 16 December 2024, relates to infringement procedures INFR(2020)2202 and INFR(2011)2054. The Commission contends that the UK has not adequately addressed several grievances, particularly concerning the rights of workers and extended family members. The case focuses on the UK's implementation of the Treaty on the Functioning of the European Union, specifically Articles 21, 45, and 49, as well as the transposition of the Free Movement Directive (2004/38/EC). This action is permissible under the Withdrawal Agreement, which allows the Commission to pursue infringement cases initiated before the end of the transition period.