1.The central administrator shall ensure that the Union Registry maintains a communication link with the registries of greenhouse gas emissions trading systems with whom a linking agreement is in force in accordance with Article 25 of Directive 2003/87/EC for the purposes of communicating transactions with allowances.
2.The central administrator shall ensure that the Union Registry maintains a direct communication link with the EUTLÂ for the purposes of checking and recording transactions with allowances and the account management processes set out in Chapter 3 of Title I. All transactions involving allowances units shall take place within the Union Registry, and shall be recorded and checked by the EUTL. The central administrator may establish a restricted communication link between the EUTLÂ and the registry of a third country which signed a treaty concerning its accession to the Union.