21.—(1) The Treasury must, by giving notice, designate a sufficient number of United Kingdom credit institutions as credit institutions to which the duty in regulation 22 is to apply in order to ensure that—
(a)access to a payment account with basic features is guaranteed for all eligible consumers in the United Kingdom;
(b)distortions of competition are prevented.
(2) Schedule 6 makes provision about the designation of credit institutions for this purpose.