Member States shall process the information collected under Article 3 in accordance with the accuracy requirements referred to in Article 4 and the detailed rules adopted by the Commission. Those measures, designed to amend non-essential elements of this Directive by supplementing it, shall be adopted in accordance with the regulatory procedure with scrutiny referred to in Article 12(2). The regional level shall be in accordance with the Nomenclature of Territorial Units (NUTS) of the Statistical Office of the European Communities.