1.A participant shall be considered as consistently and systematically failing to deliver in a security settlement system, as referred to in Article 7(9) of Regulation (EU) No 909/2014, where its rate of settlement efficiency, determined by reference to the number or to the value of settlement instructions, is at least 15 % lower than the rate of settlement efficiency of that securities settlement system, during at least a relevant number of days over the 12 previous months.
The relevant number of days shall be determined for each participant as 10 % of the number of days of activity of that participant in the security settlement system over the 12 previous months.
2.When calculating a participant's rate of settlement efficiency, exclusive reference shall be made to settlement fails caused by that participant.