In order to join, the Member State would need to submit a request to the Commission, which would then assess this against the criteria set out in the Treaty (as it did the initial requests).
Ühinemiseks peab liikmesriik esitama taotluse Euroopa Komisjonile, kes hindab selle vastavust asutamislepingus sätestatud kriteeriumitele (nagu tehti ka esialgsete taotlustega).