The Union mechanism allowing the Commission to require national regulatory authorities to withdraw planned measures concerning market definition and the designation of undertakings as having significant market power has contributed significantly to a consistent approach in identifying the circumstances in which ex ante regulation may be applied and those in which the undertakings are subject to such regulation.
De bharr shásra an Aontais lena gceadaítear don Choimisiún a cheangal ar na húdaráis rialála náisiúnta bearta pleanáilte maidir le sainiú an mhargaidh agus gnóthais a bhfuil cumhacht shuntasach sa mhargadh acu a ainmniú a tharraingt siar, tá cur chuige comhsheasmhach i bhfad níos fearr ann anois chun na himthosca ina bhféadfar rialáil ex ante a chur i bhfeidhm a shainaithint, chomh maith leis na himthosca sin ina mbíonn na gnóthais faoi réir na rialála sin.