Accession will take effect on 1 January 1981, provided that the Hellenic Republic has deposited its instrument of accession on that date and that all the signatory States to the Treaty concerning accession of the Hellenic Republic to the European Economic Commuitity and the European Atomic Energy Community have deposited their instruments of ratification before that date.
Tiocfaidh an t-aontachas i bhfeidhm ar an 1 Eanáir 1981, ar an gcoinnioll go mbeidh a hionstraim aontachais taiscthe ag an bPoblacht Heillêanach ar an data sin agus go mbeidh ionstraiml daingnithe an Chonartha i dtaobh aontachas na Poblachta Heillêanaí le Comhphobal Eacnamaíochta na hEorpa agus leis an gComhphobal Eorpach do Fhuinneamh Adamhach taiscthe ag gach ceann de Stáit a shínithe roimh an data sin.