This bit of information was in a thread concerning the SRRV Program and I felt it should be in it's proper category so for those considering Dual Citizenship may also know of the other laws not even mentioned in some of these Republic Acts of the Philippines concerning Philippine Citizenship!
These laws may appear to be similar, but they do have a slight difference in their wording!
Philippine Citizenship Philippine Constitutional Law of 1973http://www.lawphil.net/consti/cons1973.html ARTICLE III
CITIZENS
Section 1. The following are citizens of the Philippines:
Those who are citizens of the Philippines at the time of the adoption of this Constitution.
Those whose fathers and mothers are citizens of the Philippines.
Those who elect Philippine citizenship pursuant to the provisions of the Constitution of 1935.
Those who are naturalized in accordance with law.
Section 2. A female citizen of the Philippines who marries an alien retains her Philippine citizenship, unless by her act or omission she is deemed, under the law, to have renounced her citizenship.
Section 3. Philippine citizenship may be lost or reacquired in the manner provided by law.
Section 4. A natural-born citizen is one who is a citizen of the Philippines from birth without having to perform any act to acquire or perfect his Philippine citizenship.
Note: If your wife or children were born before 1973, this
Philippine Constitutional Law of 1935 will prevail!
http://www.lawphil.net/consti/cons1935.html ARTICLE IV
CITIZENSHIP
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.
Section 2. Philippine citizenship may be lost or reacquired in the manner provided by law.
last, but not least, (don't know if there is more, but there probably will be most likely)
Philippine Constitutional law of 1987 http://lawphil.net/consti/cons1987.html ARTICLE IV
CITIZENSHIP
Section 1. The following are citizens of the Philippines:
Those who are citizens of the Philippines at the time of the adoption of this Constitution;
Those whose fathers or mothers are citizens of the Philippines;
Those born before January 17, 1973, of Filipino mothers, who elect Philippine Citizenship upon reaching the age of majority.
Those who are naturalized in the accordance with law.
Section 2. 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. Those who elect Philippine citizenship in accordance with paragraph (3), Section 1 hereof 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 allegiance of citizens is inimical to the national interest and shall be dealt with by law.
Note: When in doubt, ask an Immigration Attorney in your home country or at any of the three RP BI Regional office who does the screening and or evaluation of documents concerning Philippine Citizenship!