Recital 14a

Whereas national competent authorities or supervisors should ensure that the operators of the systems establishing the interoperable systems have agreed to the extent possible on common rules on the moment of entry into the interoperable systems. National competent authorities or supervisors should ensure that the rules on the moment of entry into an interoperable system are coordinated insofar as possible and necessary in order to avoid legal uncertainty in the event of default of a participating system;