Sch 10 para 4 Maintenance system
(1) The maintenance system is to be composed of the following functions— (a) the management function, which supervises and coordinates the maintenance functions referred to in paragraphs (b) to (d) and ensures the safe state of the freight wagon in the railway system; (b) the maintenance development function, which is responsible for the management of the maintenance documentation, including the configuration management, based on design and operational data as well as on performance and return on experience; (c) the fleet maintenance management function, which manages the freight wagon's removal for maintenance and its return to operation after maintenance; (d) the maintenance delivery function, which delivers the required technical maintenance of a freight wagon or parts of it, including the release to service documentation. (2) The entity in charge of maintenance must ensure that the functions referred to in sub paragraph (1) comply with the requirements and assessment criteria set out in Part 4. (3) The entity in charge of maintenance must carry out the management function itself, but may outsource the maintenance functions referred to in paragraphs (b) to (d) of sub paragraph (1), or parts of them, to other contracting parties subject to the provisions of paragraph 8. Where it resorts to outsourcing, the entity in charge of maintenance must ensure that the principles set out in Part 2 are applied. (4) Regardless of the outsourcing arrangements in place, the entity in charge of maintenance is responsible for the outcome of the maintenance activities it manages and must establish a system to monitor performance of those activities.