What this document is
A document proving the relationship between you and the sponsored person: a marriage certificate (for a spouse) or a birth certificate (for a child).
What it must show
- A valid original/copy from Vietnam
- Clear information, still valid
Where to get it
Vietnam: the commune/ward People's Committee (marriage / birth extract). If married in Japan: a marriage-registration acceptance certificate (kon'in-todoke juri-shoumeisho) from the city hall.
How to get it
- Have family request the extract in Vietnam
- Prepare it together with a Japanese translation (next station)
Notes
If you registered the marriage only in Vietnam, it's best to complete the required marriage-notification procedures so the case is solid.