Aznar vs. COMELEC

A Filipino who simultaneously holds foreign citizenship does not lose Philippine citizenship in the absence of an express renunciation, as enumerated in Commonwealth Act No. 63; the mere act of registering as an alien with Philippine immigration authorities, without more, does not amount to such express renunciation.

Emilio Mario Renner Osmeña, son of a Filipino father and an American mother, was born in the Philippines and possessed both Philippine and United States citizenships from birth. He filed his certificate of candidacy for Provincial Governor of Cebu for the January 18, 1988 local elections. After the elections, his qualification to hold office was challenged on the ground that he was an American citizen.

• Nature of the Action: Petition for disqualification filed by Jose B. Aznar, as Provincial Chairman of PDP-Laban Cebu, against Emilio Mario Renner Osmeña, who had filed his certificate of candidacy for Cebu Provincial Governor for the January 18, 1988 elections. The ground alleged was that Osmeña was a citizen of the United States, not a Filipino.

• Petitioner’s Evidence: Before the COMELEC, petitioner presented: an Application for Alien Registration Form No. 1 signed by Osmeña on November 21, 1979; Alien Certificate of Registration No. 015356 issued on the same date; a Permit to Re-enter the Philippines dated November 21, 1979; an Immigration Certificate of Clearance dated January 3, 1980; and a certification from Immigration Commissioner Miriam Defensor Santiago stating that Osmeña was an American and holder of Alien Certificate of Registration No. B-21448 and Immigrant Certificate of Residence No. 133911, issued in March 1958. Petitioner argued that these documents proved Osmeña was an American citizen and had necessarily taken the oath of allegiance required by U.S. naturalization laws.

• Respondent’s Defense: Osmeña maintained he was a Filipino citizen, being the legitimate child of a Filipino father, Dr. Emilio D. Osmeña, and grandson of President Sergio Osmeña Sr. He presented a valid Philippine Passport No. 0855103 issued on March 25, 1987, asserted continuous residence in the Philippines since birth, and claimed to have been a registered voter since 1965 and an active electoral participant since 1963.

• COMELEC Findings: The COMELEC First Division found the petition for disqualification was filed beyond the 25-day period under Section 78 of the Omnibus Election Code and lacked substantial evidence that Osmeña had lost Philippine citizenship. It accordingly dismissed the petition.

• Loss of Philippine Citizenship: Petitioner argued that private respondent was an American citizen, as evidenced by his Alien Certificate of Registration and related immigration documents, and therefore disqualified from running for and holding the office of Provincial Governor. Petitioner contended that by obtaining these documents, Osmeña must have taken the oath of allegiance required by U.S. naturalization laws, thereby renouncing Philippine citizenship.

• Applicability of Frivaldo and Labo: Petitioner invoked the Court’s rulings in Frivaldo v. COMELEC and Labo v. COMELEC, arguing that like those cases, private respondent’s foreign registration documents proved he was an alien and thus ineligible for elective office.

• Retention of Philippine Citizenship: Respondent countered that he was born of a Filipino father and had never lost his Philippine citizenship. He relied on his valid Philippine passport, his history as a registered voter since 1965, and his continuous participation in Philippine elections as proof of his allegiance and citizenship.

• No Express Renunciation: Respondent insisted he had never taken any oath of allegiance to the United States and had not expressly renounced his Philippine citizenship in any manner prescribed by Commonwealth Act No. 63.

• Timeliness of Disqualification Petition: Whether the petition for disqualification filed on January 22, 1988 was timely under Section 78 of the Omnibus Election Code, given that the certificate of candidacy was filed on November 19, 1987.

• Conversion to Quo Warranto: Whether the disqualification petition could be treated as a petition for quo warranto under Section 253 of the same Code.

• Loss of Philippine Citizenship: Whether private respondent Emilio Osmeña lost his Philippine citizenship through express renunciation or any other mode under Commonwealth Act No. 63, and was consequently disqualified from holding the office of Provincial Governor.

• Timeliness of Disqualification Petition: The petition was filed beyond the 25-day period fixed by Section 78 of the Omnibus Election Code. The certificate of candidacy was filed on November 19, 1987, and the disqualification petition was lodged on January 22, 1988—well outside the reglementary window. As such, it was barred for untimeliness.

• Conversion to Quo Warranto: The petition could not be deemed a quo warranto proceeding under Section 253 because, at the time of filing on January 22, 1988, private respondent had not yet been proclaimed; proclamation occurred only on March 3, 1988. A quo warranto petition contemplates a post-election, post-proclamation challenge to eligibility, rendering the present petition premature for that purpose.

• Loss of Philippine Citizenship: No substantial and convincing evidence established that Osmeña lost his Philippine citizenship. The modes of losing citizenship under Commonwealth Act No. 63—naturalization in a foreign country, express renunciation of citizenship, or subscribing to an oath of allegiance to a foreign state—were not proved. The alien certificates and immigration clearances merely indicated that Osmeña was also recognized as a United States citizen; they did not constitute an express renunciation of his Philippine nationality. The requisite renunciation must be distinct, explicit, and not left to inference. Moreover, the presumption of Philippine citizenship, supported by Osmeña’s birth to a Filipino father, remained unrebutted. The rulings in Frivaldo v. COMELEC and Labo v. COMELEC were distinguished because in those cases, the candidates had formally and expressly become naturalized citizens of foreign states and had admitted the loss of Philippine citizenship, which was not the situation here.

• Express Renunciation under C.A. No. 63 — The loss of Philippine citizenship requires an express renunciation that is made known distinctly and explicitly, not left to inference or implication. Acts such as registering as an alien or holding a foreign-issued certificate of registration, without more, do not per se constitute an express renunciation of Philippine citizenship.

• Dual Citizenship and the Requisite of Renunciation — The existence of dual citizenship does not automatically result in the loss of Philippine citizenship. For a Filipino who is also a citizen of a foreign state to be divested of Philippine nationality, there must be an express act of renunciation as enumerated by law. Article IV, Section 5 of the 1987 Constitution, declaring dual allegiance inimical to national interest, was held to have no retroactive effect and required implementing legislation that had not yet been enacted.

• Presumption of Citizenship and Burden of Proof — One born of a Filipino father is presumed to be a Filipino citizen. The burden of proving loss of citizenship rests on the party asserting it; mere possession of documents indicating alien status does not, by itself, overcome this presumption.

• Distinction Between Disqualification and Quo Warranto under the Omnibus Election Code — A petition to deny due course or cancel a certificate of candidacy under Section 78 must be filed within 25 days from the filing of the certificate. After election and proclamation, the proper remedy to challenge eligibility is a petition for quo warranto under Section 253, which must be filed within ten days from proclamation.

• “Philippine courts are only allowed to determine who are Filipino citizens and who are not. Whether or not a person is considered an American under the laws of the United States does not concern Us here.” — The majority limited the inquiry to the question of Philippine citizenship under Philippine law, refusing to litigate foreign nationality.

• “When We consider that the renunciation needed to lose Philippine citizenship must be ‘express’, it stands to reason that there can be no such loss of Philippine citizenship when there is no renunciation either ‘express’ or ‘implied’.” — This passage underscores the strict standard required to divest a Filipino of citizenship and rejects implied renunciation.

• “The Certification that he is an American does not mean that he is not still a Filipino, possessed as he is, of both nationalities or citizenships. Indeed, there is no express renunciation here of Philippine citizenship; truth to tell, there is even no implied renunciation of said citizenship.” — The Court rejected the petitioner’s inference that evidence of American nationality automatically negated Philippine nationality.

• Frivaldo v. COMELEC, G.R. No. 87193, June 21, 1989 — Distinguished on the ground that Frivaldo had been formally naturalized as a U.S. citizen and admitted the fact, thereby clearly losing Philippine citizenship through express renunciation and naturalization.

• Labo v. COMELEC, G.R. No. 86564, August 1, 1989 — Distinguished because Labo had been naturalized as an Australian citizen and made sworn declarations that he was a citizen of Australia, establishing an unequivocal renunciation of Philippine citizenship.

• Board of Immigration Commissioners v. Go Callano, G.R. No. L-24530, October 31, 1968 — Cited in the dissenting opinion of Justice Padilla for its definition of express renunciation as one made known distinctly and explicitly, not left to inference.

• Commonwealth Act No. 63 — Enumerates the modes by which Philippine citizenship may be lost: (1) naturalization in a foreign country; (2) express renunciation of citizenship; (3) subscribing to an oath of allegiance to a foreign state; among others. Applied to determine that none of these grounds were established against Osmeña.

• Sections 78 and 253, Omnibus Election Code (B.P. Blg. 881) — Section 78 provides the procedure to deny due course to or cancel a certificate of candidacy on grounds of material misrepresentation; it must be filed not later than 25 days from the filing of the certificate. Section 253 governs the post-election quo warranto petition challenging eligibility, to be filed within 10 days after proclamation. Both provisions were invoked to hold the petition untimely and premature.

• Article IV, Section 5, 1987 Constitution — Declares dual allegiance of citizens inimical to the national interest and mandates that it shall be dealt with by law. The majority ruled it had no retroactive application and required implementing legislation not yet enacted.

Justices Narvasa, Bidin, Griño-Aquino, Medialdea, and Regalado concurred. Justice Feliciano concurred and joined the concurring opinion of Justice Sarmiento. Justice Cortes concurred in the result. Chief Justice Fernan took no part; Justice Gancayco was on leave.

Justice Sarmiento, in a separate concurrence, emphasized that how Osmeña acquired U.S. citizenship was critical: if by naturalization, he lost Philippine citizenship; if by jus soli, he retained it. Because the evidence did not establish naturalization, no loss could be presumed.

• Justice Melencio-Herrera — Dissented on the view that by voluntarily obtaining Alien Certificates of Registration in 1958 and 1979, Osmeña made a clear and unambiguous choice of alienage, which constituted express renunciation of Philippine citizenship. The Constitution’s condemnation of dual allegiance should have guided the Court to vote for disqualification.

• Justice Cruz — Dissented, arguing that when a person voluntarily registers as an alien with the Philippine government, he is in effect categorically affirming he is not a citizen. Such an act is an express renunciation of Philippine citizenship under C.A. No. 63, even absent naturalization. He stressed that the Philippines must not condone a dual national who formally rejects the country in its own territory.

• Justice Padilla — Dissented, maintaining that Osmeña’s sworn applications for alien registration and re-entry permits, filed twice (1958 and 1979) with Philippine immigration authorities, were distinct and explicit declarations of alienage that constituted express renunciation. He argued that the policy against dual allegiance required a choice, and Osmeña’s acts should be respected as a renunciation, consistent with Labo, where similar sworn declarations were held decisive.