reg 12 Duties of infrastructure controller
(1) Subject to paragraph (2), an infrastructure controller shall take all reasonable steps to ensure that— (a) any person operating trains in relation to railway infrastructure controlled by that controller; and (b) any person operating a station served by railway infrastructure controlled by that controller, carries out those operations so as to conform with the safety case prepared by that person and any revisions to it made under these Regulations. (2) The duty imposed on an infrastructure controller under paragraph (1) shall extend only to those parts of a safety case which affect or are likely to affect the performance of the health and safety duties of the infrastructure controller.