According to Article 26(4) of the Core FB ID CCM, Core TSOs shall continuously monitor the effects and the performance of the application of this methodology during the parallel run and shall develop, in coordination with the Core regulatory authorities, the Agency and stakeholders, the monitoring and performance criteria and report on the outcome of this monitoring on quarterly basis in a report. Core TSOs have aligned on the specific KPIs with NRAs and this alignment resulted in the format of this KPI report.

Core TSOs have also elaborated Reading Guide to support the understanding and interpretation of the KPIs.