332.Section 203 places the Franchising Director under a duty to notify the Mayor of any proposal by him to discontinue a passenger rail service affecting Greater London.
333.Section 204 enables the existing procedure for discontinuance (closures) of Underground services, and for those to be operated on Croydon Tramlink or the Docklands Light Railway, to be carried forward. However, it will be the Mayor who takes decisions on closures, rather than the Secretary of State.  For TfL services outside London, those aggrieved by a Mayoral decision will have a right of appeal to the Secretary of State.
Commentary on Sections Part Iv: Transport Chapter Vi - Railways Sections 203 to 204: Closures