1. Undertakings engaged in the occupation of road transport operator shall:
((a))
have an effective and stable establishment in a Member State;
((b))
be of good repute;
((c))
have appropriate financial standing; and
((d))
have the requisite professional competence.
2. Member States may decide to impose additional requirements, which shall be proportionate and non-discriminatory, to be satisfied by undertakings in order to engage in the occupation of road transport operator.