The Constitutional Treaty was elaborated by a Convention including national parliamentarians, government representatives, EU Commissioners and MEPs in 2002 and 2003 and was approved by the heads of state and government in June 2004.
Konstitucionālais līgumu 2002. un 2003. gadā izstrādāja Konvencija, ko veidoja nacionālo parlamentu un valdību pārstāvji, ES komisāri un eirodeputāti.