1. Member States shall ensure that any investment firm authorised and supervised by the competent authorities of another Member State in accordance with this Directive, and in respect of credit institutions in accordance with Directive 2000/12/EC, may freely perform investment services and/or activities as well as ancillary services within their territories, provided that such services and activities are covered by its authorisation. Ancillary services may only be provided together with an investment service and/or activity.
Member States shall not impose any additional requirements on such an investment firm or credit institution in respect of the matters covered by this Directive.
2. Any investment firm wishing to provide services or activities within the territory of another Member State for the first time, or which wishes to change the range of services or activities so provided, shall communicate the following information to the competent authorities of its home Member State: