The system applied for the ten countries that joined the Union on 1 May did not envision the possibility of delaying a country's actual accession and has been viewed by some European officials as ineffective.
Sistemom koji je korišćen za deset zemalja koje su pristupile Uniji 1. maja nije bila predviđena mogućnost odlaganja samog prijema i neki evropski zvaničnici smatrali su ga nedelotvornim.