1. If you have a cutoff time, it needs to be included in your disclosure. If you change your cutoff time, you must give your customers 30-day notice of the change.
2. There are no specific requirements as to how customers must be notified. Therefore, I see no reason why you could not use a statement message.
3. Yes, that language is ok. I would prefer CHANGE IN TERMS: "Effective 9/1/2004, deposits received after 2:30 PM will be processed as if received the next business day."
See 229.18(e)
4. I think you have to send the change to everybody. I would have a different opinion if the specific cutoff times for each bank were not listed in the disclosure. Listing the specific cutoff times is the determinant for me on sending the disclosure change to the other bank customers in your BHC.
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The opinions expressed here are personal and do not represent opinions of my employer.