Since it covers free movement of citizens, which cannot be considered to be merely incidental, this Regulation should be based on Article 21(2) and Article 114(1) of the Treaty on the Functioning of the European Union (TFEU).
Ós rud é nach féidir a mheas gur nithe teagmhasacha amháin iad comhchodanna na Rialacháin a chuimsíonn saorghluaiseacht saoránach, ba cheart an Rialachán seo a bhunú ar Airteagal 21(2) agus Airteagal 114(1) den Chonradh ar Fheidhmiú an Aontais Eorpaigh (CFAE).