The Metro II reporting format has a field titled "Address Indicator" wherein the reporting entity can send a value of a "C" for a Confirmed / Verified address. I think this value was added in 2008 to allow FIs to respond to the address discrepancy flags. It may have been added sooner than that.
Address indicator fields exist in the record for the borrower in the Base Segment and for co-borrowers at a different address in the J2 Segment.
_________________________
Opinion expressed are my own and not necessarily those of my employer.