Article 2

1 For the purpose of this Convention, transfrontier co-operation shall mean any concerted action designed to reinforce and foster neighbourly relations between territorial communities or authorities within the jurisdiction of two or more Contracting Parties and the conclusion of any agreement and arrangement necessary for this purpose. Transfrontier co-operation shall take place in the framework of territorial communities' or authorities' powers as defined in domestic law. The scope and nature of such powers shall not be altered by this Convention.

2 For the purpose of this Convention, the expression "territorial communities or authorities" shall mean communities, authorities or bodies exercising local and regional functions and regarded as such under the domestic law of each State. However, each Contracting Party may, at the time of signing this Convention or by subsequent notification to the Secretary General of the Council of Europe, name the communities, authorities or bodies, subjects and forms to which it intends to confine the scope of the Convention or which it intends to exclude from its scope.