Lead
When a child is born and raised abroad, it becomes immediately unclear which country's procedures apply to which responsibilities. Vaccination schedules vary by country. A child's Japanese nationality can be lost if a registration deadline is missed. The boshi techo — Japan's Maternal and Child Health Handbook — is not available through the usual channels when you live overseas.
Because the information is so scattered, this article focuses on three specific points: birth registration, vaccinations, and nationality.