Article 30 Political Constitution of the United Mexican States

Mexican nationality is acquired by birth or by naturalization.

A)The following are Mexicans by birth:

I.Those born in the territory of the Republic, whatever the nationality of their parents may be.

II.Those born abroad, children of Mexican parents, of a Mexican mother or of a Mexican father;

III.Those born abroad, children of parents Mexican by naturalization, of a father Mexican by naturalization, or of a mother Mexican by naturalization, and

IV.Those born on board Mexican vessels or aircraft, whether of war or merchant.

B)The following are Mexicans by naturalization:

I.Foreigners who obtain from the Ministry of Foreign Affairs (Secretaría de Relaciones) a letter of naturalization.

II.The foreign woman or man who contract marriage with a Mexican man or with a Mexican woman, who have or establish their domicile within the national territory and comply with the other requirements that the law indicates for that purpose.