The European Commission has adopted a Delegated Regulation with regard to RTS on requirements to ensure fair and non-discriminatory co-location services and fee structures. Under MiFID II, trading venues must ensure that their rules on co-location and fee structures are transparent, fair and non-discriminatory and the RTS specify the requirements to ensure that co-location services and fee structures are fair, non-discriminatory and do not create incentives for disorderly trading conditions or market abuse.