In October, the state department introduced a new policy:

> Applicants for U.S. nonimmigrant visas (NIV) should schedule their visa interview appointments at the U.S. Embassy or Consulate in their country of nationality or residence

> Applicants must be able to demonstrate residence in the country where they are applying, if the place of application is based on their residency.

What sort of proof is required to demonstrate residence? What about cases where an applicant legally has residency in a particular country (e.g. PR card or work visa) but in practice lives in the US as an H-1B/TN/L-1/O-1/etc. worker or H-4/TD/L-2/O-3/etc. dependant? Especially for the dual intent visas?