Article 55 of the Mexican Immigration Law
Permanent residents shall have the right to preserve the family unit, for which reason they may enter with or subsequently request the entry of the following persons, who may reside in the national territory under the same condition of stay and with the prerogatives indicated in the previous article:
I . Parent of the permanent resident;
II . Spouse, who will be granted temporary resident status for two years, after which he/she may obtain permanent resident status, as long as the marital relationship subsists;
III . Concubine, concubine, or equivalent figure who will be granted the status of temporary resident for two years, after which he/she may obtain the status of permanent resident, as long as the concubinage subsists;
IV . Children of the permanent resident and the children of the spouse or common-law spouse, as long as they are children and adolescents and have not been married, or are under their guardianship or custody, and
V . Siblings of the permanent resident, as long as they are children and adolescents and have not married, or are under their legal representation.
For the exercise of the right enshrined in this article of persons who are granted political asylum or obtain recognition of refugee status, the provisions of international treaties to which the Mexican State is a party and other applicable legislation shall be complied with.
Amended paragraph DOF 30-10-2014