Mexico City legalises the fining of shops which give away free plastic bags in an environmental initiative.
The National Electoral Institute reports that President Andrés Manuel López Obrador's coalition Juntos Hacemos Historia is projected to win between 265 and 292 seats in the Chamber of Deputies, retaining its majority but without the two-thirds majority that it previously had. His party National Regeneration Movement (MORENA) saw losses in Mexico City, previously a MORENA stronghold. López Obrador subsequently vows to do more to help the poor.
The Mexican Federal District is officially renamed to Mexico City (Ciudad de México), and becomes one of the 32 first-level administrative entities of Mexico. [https:--www.theguardian.com-world-2016-jan-29-mexico-city-name-change-federal-district-df ("The Guardian)"]