Article 3: Citizenship
Section 1. The following are citizens of the Philippines:
(1) Those who are citizens of the Philippines at the time this Constitution is adopted;
(2) Those whose fathers or mothers are citizens of the Philippines; and
(3) Those who are naturalized in accordance with law.
Section 2. Natural-born citizens are those who are citizens of the Philippines from birth or those who, in accordance with law, reacquire such citizenship. Those born of Filipino mothers who elect Filipino citizenship shall be deemed natural-born citizens.
Section 3. Philippine citizenship may be lost or reacquired in the manner provided by law.
Section 4. Citizens of the Philippines who marry aliens shall retain their citizenship, unless by their act or omission they are deemed, under the law, to have renounced it.
Section 5. Dual citizenship may be allowed under conditions set by law.