Article 37 Political Constitution of the United Mexican States

A)No Mexican by birth may be deprived of their nationality.

B)Mexican nationality by naturalization shall be lost in the following cases:

I.By voluntary acquisition of a foreign nationality, by passing oneself off in any public instrument as a foreigner, by using a foreign passport, or by accepting or using noble titles that imply submission to a foreign State, and

II.By residing for five continuous years abroad.

C)Mexican citizenship is lost:

I.By accepting or using noble titles of foreign governments;

II.By voluntarily rendering official services or functions to a foreign government, without permission of the Federal Executive;

III.By accepting or using foreign decorations without permission of the Federal Executive.

The President of the Republic, the senators and deputies to the Congress of the Union and the ministers of the Supreme Court of Justice of the Nation may freely accept and use foreign decorations;

IV.By admitting from the government of another country titles or functions without prior permission of the Federal Executive, excepting the literary, scientific or humanitarian titles that may be accepted freely;

V.By helping, against the Nation, a foreigner, or a foreign government, in any diplomatic claim or before an international court, and

VI.In the other cases established by the laws.