If transmission networks of two or more Member States form part, entirely or partly, of a single control block, for the purpose of the inter-transmission system operator (TSO) compensation mechanism referred to in Article 3 only, the control block as a whole shall be considered as forming part of the transmission network of one of the Member States concerned, in order to avoid flows within control blocks being considered as cross-border flows and giving rise to compensation payments under Article 3.

Whereas, in order to guarantee an effective control of the effects arising in a given market from the existence of parallel networks of similar agreements, a block-exemption regulation may establish the conditions under which those networks of agreements may be excluded from its application by means of regulation;