Answer:
If the customer doesn't opt-in, you cannot charge for any NSF/OD fees incurred from ATM or one time debit card transactions. The customer doesn't have to choose to opt-out, just not opt-in.
An OD service includes all OD's, not just LOC or overdraft privilege programs. If the customer opts-in, you can process the OD and charge him/her.
First published on BankersOnline.com 9/13/10