In our online banking system, all customers have access to their statements whether or not they have opted-in to e-statements, so they still get printed statements also. We would like to change this so if a customer wants to view their statement online, they must opt-in to e-statements. The only place our E-statement product is disclosed as being available to all internet banking users is in our Internet Banking Agreement and Disclosure. Is a change in terms notification required? If so, under Reg E, Reg DD or both? And must it be in writing? We know customers need to be notified in advance from a customer service/courtesy issue, but not clear on regulatory notice.