The European Commission has launched a consultation on initiative 15594 concerning European Health Data Space (EHDS) requirements for cross-border exchange of personal health data under the MyHealth@EU programme. The draft implementing regulation establishes detailed rules governing the infrastructure, including technical, semantic and organisational interoperability, cybersecurity, and service management, building on the existing eHealth Digital Service Infrastructure to enable secure and efficient data exchange across Member States. It assigns the Commission responsibility for operating a central interoperability platform, comprising reference software, a terminology service, a secure communication network and a configuration service, while working with a Member State steering group that approves technical specifications, system changes and operational plans. The framework introduces a requirements catalogue and technical specifications, alongside structured procedures for updates, compliance checks and authorisation, requiring national contact points for digital health to meet defined standards before initiating and while continuing cross-border data exchange. It also clarifies data protection roles by designating national contact points as joint controllers and the Commission as processor, setting out obligations relating to security, confidentiality and data subject rights, and provides transitional measures and a phased implementation timeline beginning in March 2027 in line with the broader EHDS framework. The consultation closes on 7 May 2026.