In order to ensure that national regulatory authorities carry out their regulatory tasks in an effective manner, the data which they gather should include accounting data on the retail markets that are associated with wholesale markets where an undertaking is designated as having significant market power and as such are regulated by the national regulatory authority.
Chun a áirithiú go ndéanfaidh na húdaráis rialála náisiúnta a gcuid cúraimí rialála ar bhealach éifeachtach, ba cheart bheith san áireamh sna sonraí a bhailíonn siad sonraí cuntasaíochta faoi na margaí miondíola a bhaineann leis na margaí mórdhíola ina n-ainmnítear gnóthas mar gnóthas a bhfuil cumhacht shuntasach sa mhargadh aige agus, dá réir sin, atá á rialáil ag an údarás rialála náisiúnta.