Yes, change management roles and responsibilities are governed by the CAB process in which management are included as well as the relevant stakeholders including IT and any RWS system testers, any system changes are tested before implementation and/or deployment. Emergency changes are carried out in the same way as the standard change management process, ensuring the changes are logged, recorded, tested, agreed and implemented. Implementing change is the responsibility of release management, however the process at large is the responsibility of CAB.