This document defines requirements for the content on maintenance records on railway vehicles and guidance to help the parties involved in the maintenance process to fulfil their responsibilities, especially to: - document that maintenance has been ordered properly; - document that maintenance has been delivered according to the maintenance order. The following are out of the scope of this document: - managing documentation required to schedule and carry out maintenance (e.g. trigger events for planned maintenance or fault notices reported by train crew); - managing fault notices generated by trainborne diagnostic systems; - managing documentation related to the interaction between railway undertakings and ECM (e.g. return to operation).