Originally Posted by
tmiw
My impression was that US Debit would always be chosen by a debit supporting terminal. If the cardholder bypassed PIN then the "No CVM Required" entry in the CVM list would get chosen and network selection would cause a signature network to be used (and the corresponding signature slip to print out). The main Visa/MC AID's CVM list doesn't come into play at all.
But the question was what happens at terminal that does NOT support US debit