Expanding on your #1, the customer must demonstrate, when agreeing to accept e-disclosures, that the customer can receive them and read them. It's more than just "Yeah, I want to get my statement electronically."
Adding #4, because you don't have Reg. E Error Resolution disclosures on the statement, you need to either add a conspicuous link to each periodic statement ("Click here for important information in case of errors on your account involving electronic transfers" or something similar), linked to a copy of the Reg. E error resolution disclosures; or send a separate annual disclosure using the long form wording, either electronically (if the customer agreed to get ALL disclosures, not just statements, electronically) or by snail mail.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8