In Mexico City and the State of Mexico, the environmental contingency due to atmospheric pollution remains active, leading to the implementation of the Hoy No Circula program, which restricts vehicle use during specific hours. The timing of these restrictions varies based on vehicle type and what it is transporting. According to the Comisión Ambiental de la Megalópolis (CAMe), phase I of the contingency remains in effect, and these measures are aimed at reducing the risks associated with air pollution.

The Hoy No Circula program is particularly focused on curbing vehicular circulation during peak contamination periods, which are from 5:00 AM to 10:00 PM in the Mexico City Metropolitan Area (ZMVM). The initiative is part of broader efforts to tackle air pollution and restore normal conditions in urban areas. It emphasizes the need for a collective response to manage air quality and protect public health by regulating vehicle emissions.

Mexican authorities are now intensifying their efforts under the Hoy No Circula program to ensure that the environmental situation improves. The evolving nature of the strategies may reflect changes in pollution levels and public health advisories, necessitating ongoing public awareness and compliance with the regulations to achieve sustainability goals in the region.