From 1 June 2025 a data subject may, by written notice given electronically, ask the data controller to transmit their personal data directly to another data controller of their choice. The request is subject to technical feasibility and compatibility of the data format, and the controller must complete the transmission within the period to be prescribed (no prescribing instrument or portability guideline had been issued by 2026-09-25; the Commissioner's 2024 consultation proposed 21 days extendable by 14).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.