Article 1 
Article 31(1) of the Convention of 18 December 1997, drawn up on the basis of Article K.3 of the Treaty on European Union, on mutual assistance and cooperation between customs administrations shall be replaced by the following: ‘1. This Convention shall apply to the territories of the Member States comprised in the customs territory of the Community as well as, for the Federal Republic of Germany, the Island of Heligoland and the territory of Büsingen (within the framework of and pursuant to the Treaty of 23 November 1964 between the Federal Republic of Germany and the Swiss Confederation on the inclusion of the commune of Büsingen am Hochrhein in the customs territory of the Swiss Confederation, or the current version thereof) and, for the Italian Republic, the municipalities of Livigno and Campione d'Italia, and to the territorial waters, the inland maritime waters and the airspace of the territories of the Member States.’
Article 2 
The Convention, as amended by this Decision, shall enter into force for Bulgaria and Romania on the date of entry into force of the Convention, without prejudice to Article 32(4) of the Convention.
Article 3 
The Convention drawn up in the Bulgarian and Romanian languages ( 3 ) shall be authentic under the same conditions as the other texts of the Convention.
Article 4 
This Decision shall take effect on the day following its publication in the Official Journal of the European Union .