If the adult child was born in the Philippines and at least one parent is still Filipino at the time of child’s birth, he/she may file his/her own application for dual citizenship under RA9225.
If the adult child was born in the US and both parents are already naturalized US citizen at the time of child’s birth, the adult child or parent/s can file a Petition for Naturalization as a Filipino Citizenship at the Bureau of Immigration in the Philippines. (Please see Recognition of Filipino Citizenship)
If the adult child was born in the US and at least one parent is still Filipino at the time of child’s birth, the adult child or parent/s can apply for Report of Birth of a Filipino Abroad at the Philippine Embassy or Consulate which has jurisdiction over the place of birth. (Please see Report of Birth)