ECB kan kræve, at kreditinstitutter, der er etableret i medlemsstaterne, holder mindstereserver på konti hos ECB og de nationale centralbanker for at opfylde målene for den monetære politik, jf. dog artikel 2.
Subject to Article 2, the ECB may require credit institutions established in Member States to hold minimum reserve on accounts with the ECB and national central banks in pursuance of monetary policy objectives.