Ok...I'm going to reply to my own post!

In reviewing the Iowa Deposit Documentation for POD account titling, it says, "Upon the death of all owners, funds pass to the surviving POD payee. If there is more than one surviving POD payee, they own the funds in equal shares... unless the terms of the account agreement provide otherwise. If no POD payees survive an owner, the funds are payable to the last surviving owner's estate." However, I still don't have any guidance as to which code section applies.