Naturalization Laws / Citizenship Laws
Section 4. Disqualifications, - The following are not qualified to be naturalized as Filipino citizens under this Act:
(a) Those opposed to organized government or affiliated with any association of group of persons who uphold and teach doctrines opposing all organized governments;
(b) Those defending or teaching the necessity of or propriety of violence, personal assault or assassination for the success or predominance of their ideas;
(c) Polygamists or believers in the practice of polygamy;
(d) Those convicted of crimes involving moral turpitude;
(e) Those suffering from mental alienation or incurable contagious diseases;
(f) Those who, during the period of their residence in the Philippines, have not mingled socially with Filipinos, or who have not evinced a sincere desire to learn and embrace the customs, traditions and ideals of the Filipinos;
(g) Citizens or subjects with whom the Philippines is at war, during the period of such war; and
(h) Citizens or subjects of a foreign country whose laws do not grant Filipinos the right to be naturalized citizens or subjects thereof.