Some countries aim to join by 2007, others have said they are aiming for 2010, others will join later, but no dates have yet been set.
Dažas valstis plāno iestāties 2007. gadā, gatavojas to darīt 2010. gadā, vēl citas iestāsies vēlāk, bet datumi vēl nav noteikti.