ERA organises and processes the Change Control Management (CCM) for the ERTMS specifications and related documents listed in Annex A of the Control Command and Signalling (CCS) Technical Specification for Interoperability (TSI).
A CCM procedure exists at ERA. This procedure is based on the former procedure originally approved by the ERTMS Control Group and takes account of the return of experience accumulated over the past years.
Any modification to the ERTMS specification is analysed via a Change Request (CR). CRs can only be submitted in the CCM tool by the representative bodies. More information about the submission of CRs can be found in the restricted ERTMS area.