In section 13 of the 1993 Act (modification references to the Competition Commission), subsection (1)(a)(i) has effect as if the reference to a railway asset, or railway assets of a class or description, whose operator acts as such by virtue of a licence included a reference to a railway asset which is, or railway assets of a class or description which are, used for the provision of train services in respect of which a SNRP is held.