G.R. No. L-11317 - Chioco vs. Ongsiapco

Respondent Nora Fe Sagun y Chan was born on August 8, 1959 in Baguio City as the legitimate child of Albert S. Chan (Chinese national) and Marta Borromeo (Filipino citizen). Upon reaching the age of majority, she did not elect Philippine citizenship under the 1935 Constitution.
She was raised in Baguio City, speaks Ilocano and Tagalog fluently, attended Holy Family Academy and Saint Louis University, and considered herself Filipino by upbringing and community ties.

In December 1992, at age 33, respondent executed an Oath of Allegiance to the Republic of the Philippines before Atty. Cristeta Leung; this document was notarized on December 17, 1992 but was neither recorded nor registered with the Local Civil Registrar of Baguio City.
In September 2005, respondent applied for a Philippine passport; her application was denied on the ground that her father was Chinese and there was no annotation on her birth certificate evidencing the election of Philippine citizenship.

Respondent filed a petition for “Judicial Declaration of Election of Filipino Citizenship” in RTC Branch 3, Baguio City, praying for a declaration of Filipino citizenship and for the annotation of such election on her birth certificate. She supported her petition with evidence of voter registration, voting records, and proofs of continuous residence and cultural assimilation.
The Office of the Solicitor General appeared for the Republic, and the City Prosecutor filed no comment. After hearings, the RTC rendered its Decision on April 3, 2009, granting the petition, declaring respondent a Filipino citizen, and directing the Local Civil Registrar to annotate her birth certificate.

The Solicitor General, on behalf of the Republic, filed a petition before the Supreme Court, raising purely legal questions.
Petitioner challenged (a) the procedural and jurisdictional permissibility of a judicial declaration of citizenship, and (b) the validity of an election of citizenship made twelve years after majority and without proper registration.

Whether there exists a procedurally and jurisdictionally permissible action for judicial declaration of Philippine citizenship.
Whether an election of Philippine citizenship made twelve years after reaching the age of majority, without a sworn statement and civil registry registration, is valid within a “reasonable time.”