Liechtenstein Annex 3 - Note c

the provision or operation of networks2 providing a service to the public in the field of transport by urban railway, automated systems, tramway, trolleybus, bus or cable (as specified under title 3);

Referenced Notes:

2 As regards transport services, a network shall be considered to exist where the service is provided under operating conditions laid down by a competent authority of an EEA Member State, such as conditions on the routes to be served, the capacity to be made available or the frequency of the service.