To ask the Secretary of State for Transport what the scope of his Department's powers is to alter the level of Control Period 4 funding; and if he will make a statement. (274391)

The Periodic Review settlement may be revised by means of an interim review. The Office of Rail Regulation may trigger an interim review if it believes that the settlement can no longer be funded as agreed. In forming its view, the Office of Rail Regulation is required to take account of any representations from the Department for Transport.