The ESCB derives its democratic legitimacy from the fact that the Maastricht Treaty, which created the ESCB, was signed and ratified by all of the Member States in agreement with its constitutional provisions.
ECBS demokrātisko atzīšanu nodrošina fakts, ka EK līgumu (Māstrihtas Līgums), ar kuru izveidoja ECBS, parakstīja un ratificēja visas dalībvalstis saskaņā ar to konstitucionālajām prasībām.