1. 1. Undertakings engaged in the occupation of road transport operator shall:
(a)((a)) have an effective and stable establishment in a Member State;
(b)((b)) be of good repute;
(c)((c)) have appropriate financial standing; and
(d)((d)) have the requisite professional competence.
2. 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.