Article L330-1 of the French Monetary and Financial Code
I. – An interbank settlement system or a system for the settlement and delivery of financial instruments means a national or international procedure organising relations between at least three participants, not including the system operator, as defined in 5° of II of this article, or any indirect participants, as defined in the last paragraph of II, permits, in accordance with common rules and standardised procedures within the meaning of Directive…