The Bank of England, together with the Financial Conduct Authority and Prudential Regulation Authority, has signed a Memorandum of Understanding with the European Supervisory Authorities to strengthen cross-border cooperation on the oversight of critical third parties that fall under the UK’s critical third party (CTP) regime. The MoU sets a framework for coordination and information sharing on UK CTPs and EU “Critical Third Party Providers” supervised under the EU’s Digital Operational Resilience Act (DORA), including during incidents such as power outages or cyber-attacks. It is intended to help manage risks to financial stability and market confidence while reducing duplication and regulatory burden for third-party providers operating across jurisdictions. The UK’s CTP regime was introduced in 2024, with rules effective from 1 January 2025 but applying once a provider is designated by HM Treasury. The designation process has begun, and UK regulators expect to continue working with HM Treasury as it progresses; designated CTPs will be required to provide regular assurance, undertake resilience testing and report major incidents, without reducing financial firms’ and Financial Market Infrastructures’ responsibilities under existing outsourcing rules.