In 2010, Mexico's Supreme Court mandated the whole country recognize gay marriages conducted in the capital.
As a result of the 9-2 decision, all 31 states were to honor the rights of gay couples married in Mexico City, but they were not required to pass their own same-sex marriage legislation.
Two years later, some Mexican states are setting plans in motion to allow same-sex marriages.
According to Infonor, the northern state of Coahuila will consider modifying the state's civil code in order to permit same sex couples to marry.