1. Member States shall ensure that the provisions of this Directive are extended in whole or in part to professions and to categories of undertakings, other than the institutions and persons referred to in Article 2(1), which engage in activities which are particularly likely to be used for money laundering or terrorist financing purposes.
2. Where a Member State decides to extend the provisions of this Directive to professions and to categories of undertakings other than those referred to in Article 2(1), it shall inform the Commission thereof.