Counterparties should be considered to be included in the same consolidation at least where they are both included in a consolidation in accordance with Council Directive 83/349/EEC ( 16 ) or International Financial Reporting Standards (IFRS) adopted pursuant to Regulation (EC) No 1606/2002 of the European Parliament and of the Council ( 17 ) or, in relation to a group the parent undertaking of which has its head office in a third country, in accordance with generally accepted accounting principles of a third country determined to be equivalent to IFRS in accordance with Commission Regulation (EC) No 1569/2007 ( 18 ) (or accounting standards of a third country the use of which is permitted in accordance with Article 4 of Regulation (EC) No 1569/2007), or where they are both covered by the same consolidated supervision in accordance with Directive 2006/48/EC or with Directive 2006/49/EC of the European Parliament and of the Council ( 19 ) or, in relation to a group the parent undertaking of which has its head office in a third country, the same consolidated supervision by a third country competent authority verified as equivalent to that governed by the principles laid down in Article 143 of Directive 2006/48/EC or in Article 2 of Directive 2006/49/EC.