1. Member States shall require that investment firms and market operators operating an MTF or OTF establish and maintain effective arrangements and procedures, relevant to the MTF or OTF, for the regular monitoring of the compliance by its members or participants or users with its rules. Investment firms and market operators operating an MTF or an OTF shall monitor the orders sent, including cancellations and the transactions undertaken by their members or participants or users under their systems, in order to identify infringements of those rules, disorderly trading conditions, conduct that may indicate behaviour that is prohibited under Regulation (EU) No 596/2014 or system disruptions in relation to a financial instrument and shall deploy the resource necessary to ensure that such monitoring is effective.
Member States shall require that investment firms and market operators operating an MTF or an OTF have arrangements in place to ensure that they meet data quality standards pursuan
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