Jurisdiction for the initial overpayment notice may or may not be DIO when a debtor
is outside the U.S., Puerto Rico, the Virgin Islands, American Samoa, Guam and the
DIO always has jurisdiction when full refund is not received in response to the initial
overpayment notice and followup refund efforts are necessary.
DIO generally has jurisdiction when adjustment is available against benefits due someone
outside the U.S.