Descendência sob a Constituição de 1935 (pai filipino)

The route's doctrinal anchor is Tecson v. COMELEC, G.R. No. 161434 (2004) (PH-PRIMARY-19), which confirms both that the 1935 charter "adopt[ed], once and for all, jus sanguinis.. as.. the basis of Filipino citizenship" and that "A legitimate child of a Filipino father follows the citizenship of the father." As of 2026 the natural-born status of a person who qualified under the 1935 paternal rule is fixed and durable, carried forward by the continuity clauses of the 1973 and 1987 Constitutions without any re-acquisition act.

Eligibility under PH-DSC-02 turns on three facts, all referenced to the date of birth within 1935-11-15 to 1973-01-16:

1. Filipino father at birth. Under 1935 Const. Art. IV §1(3) — "Those whose fathers are citizens of the Philippines" — a child of a Filipino father is a citizen from birth automatically; "the paternal line transmits without any election requirement" (ASSERT-005).
2. Legitimacy or proven filiation. A legitimate child "by the fact of legitimacy, automatically follows the citizenship of the Filipino father" (Tecson, ASSERT-006). An illegitimate child "enjoys no presumption of blood relation to any father" and must "prove [the] blood relation to [the] alleged Filipino father" in the appropriate proceeding (Tecson; ASSERT-006). Critically, Tecson also held the 1935 Constitution "confers citizenship to all persons whose fathers are Filipino citizens regardless of whether such children are legitimate or illegitimate" — so illegitimacy is an evidentiary hurdle (proof of paternity), not a substantive bar, once the blood tie is established.
3. Birth in the 1935 window. For births on/after 1973-01-17 the equalized rule of PH-DSC-01 applies and PH-DSC-02's asymmetry is irrelevant.

A child of a Filipino mother and alien father born in this window is not eligible under PH-DSC-02 (no automatic paternal-line transmission); that person's remedy is election under PH-ELE-01. As of 2026 PH-DSC-02 eligibility is assessed retrospectively for the affected birth cohort.

Proof under PH-DSC-02 must establish (a) the father's Philippine citizenship as of the child's birth date in the 1935 window, and (b) filiation. For a legitimate child, the parents' marriage certificate plus the child's birth record invoke the presumption that a child born in wedlock carries the father's blood and citizenship (Tecson: "A child born within wedlock is presumed to be the son of the father and thus carries the blood of the father"). For an illegitimate child, additional proof of paternity is required — acknowledgment, recognition, or other proof of filiation, and where unavailable the Tecson Court acknowledged DNA testing as a probative option ("In case proof of filiation or paternity would be unlikely to satisfactorily establish or would be difficult to obtain, DNA testing.. could be resorted to"). Because the relevant births are decades old, secondary and reconstructed civil-registry evidence is common; the legal standard remains proof of the father's citizenship and the blood tie. No statutory documentary checklist is fixed by the 1935 Constitution itself; BI/DFA administrative requirements (P1.5 post-ingest) supply current evidentiary practice and must not be fabricated.

Like PH-DSC-01, PH-DSC-02 confers status by operation of law; there is no acquisition procedure and no authority that "grants" citizenship to a 1935-regime paternal-line child. The modern relevance is evidentiary and recognition-oriented:

• A person born in the window who needs to prove status today does so through PSA/civil-registry records establishing the father's Philippine citizenship at birth and the parent-child filiation, supporting a DFA passport or a Bureau of Immigration recognition / Identification Certificate (PH-REC-01).
• Where filiation is contested (especially for an illegitimate claimant), the blood relation "must be established in the appropriate proceedings in accordance with law" (Tecson) — which may include civil-registry correction proceedings or, incidentally, litigation in which status is passed upon. But there is still no standalone judicial declaration of citizenship: Republic v. Sagun (PH-PRIMARY-22) holds "there is no proceeding established by law.. for the judicial declaration of the citizenship of an individual."

The competent administrative bodies for evidencing status are the PSA (civil registry), DFA (passports), and BI (recognition). As of 2026 no oath, fee, or residence attaches to the descent status under the 1935 rule.

There is no acquisition timeline: a qualifying child was a natural-born citizen from the instant of birth in the 1935 window, "without having to perform any act" (1935-regime natural-born status, confirmed by Co v. HRET). The only timelines are administrative and modern — passport, Report of Birth, or BI recognition processing — and these are set by current agency circulars (post-ingest per P1.5), bearing on proof rather than status. A distinct temporal point: unlike the election route (PH-ELE-01), PH-DSC-02 imposes no "reasonable time" deadline, because no election is required of the paternal-line child; the In Re Ching reasonable-time doctrine applies only to maternal-line electors. As of 2026, persons born to Filipino fathers in 1935-11-15 to 1973-01-16 retain natural-born status irrespective of when they document it; the status has been continuously carried forward by the 1973 and 1987 continuity clauses. A practical corollary: because no deadline ever ran against the paternal-line child, an elderly claimant who first seeks Philippine documents decades after birth faces no time-bar to proving the status — only the ordinary evidentiary difficulty of reconstructing mid-20th-century civil-registry records. This distinguishes PH-DSC-02 sharply from PH-ELE-01, where delay can be fatal to an unperfected election (In Re Ching), and underscores that the 1935 paternal rule is a permanent status determinant rather than a lapsing opportunity.

The basis is the 1935 Constitution (PH-PRIMARY-02), Article IV, Section 1, quoted verbatim:

"Section 1. The following are citizens of the Philippines: Those who are citizens of the Philippine Islands at the time of the adoption of this Constitution. Those born in the Philippine Islands of foreign parents who, before the adoption of this Constitution, had been elected to public office in the Philippine Islands. Those whose fathers are citizens of the Philippines. Those whose mothers are citizens of the Philippines and, upon reaching the age of majority, elect Philippine citizenship. Those who are naturalized in accordance with law."

The paternal-line provision is enumerated by the Supreme Court as Section 1(3) and the maternal-election provision as Section 1(4) (see In Re Ching, PH-PRIMARY-17, which reproduces the full enumeration; and Tecson). The natural-born quality of a 1935-regime paternal-line citizen is confirmed by the modern definition the Court applies retroactively: "Natural-born citizens are those who are citizens of the Philippines from birth without having to perform any act to acquire or perfect their Philippine citizenship" (Co v. HRET, PH-PRIMARY-18). The continuity clause — 1935 Art. IV §1(1), "Those who are citizens of the Philippine Islands at the time of the adoption of this Constitution" (and its 1973/1987 successors) — carries the status forward (ASSERT-032). As of 2026 the 1935 text remains the determinative statutory basis for status questions about persons born in its window.