Every bank I ever working for had rules around stop payments that included requiring the customer to review and sign the form within a certain number of days of placing the stop, usually 14. Does anybody know if this is a rule/regulation or just something everybody does as a good business practice. Reason is we have purchased a new, very expensive, DDA Core application that has a very poor stop payment module, with no way of placing a stop on ACH, only checks and no way to do an automatic notice of any kind. Just wondering. Thanks.

It's covered by the UCC 4-403

Great, thanks, just the info I needed.

Also take a look at Reg E paragraph 205.10(c)on the consumer's right to Stop Payment on electronic pre-authorized transfers.