Issuance and circulation
Legally, both the ECB and the central banks of the euro area countries have the right to issue euro banknotes. In practice, only the national central banks physically issue and withdraw euro banknotes (as well as coins). The ECB does not have a cash office and is not involved in any cash operations. As for euro coins, the legal issuers are the euro area countries. The European Commission coordinates all coin matters at euro area level. For further information, see the European Commission’s website.
Responsibilities of ECB and national central banks
The ECB is responsible for overseeing the activities of the national central banks (NCBs) and for initiating further harmonisation of cash services within the euro area, while the NCBs are responsible for the functioning of their national cash-distribution systems. The NCBs put banknotes and coins into circulation via the banking system and, to a lesser extent, via the retail trade. The ECB cannot perform these operations as it does not have its own technical departments (distribution units, banknote processing units, vaults, etc.).