On March 19, 2025, residents of Mexico City and the State of Mexico must adhere to the Double Hoy No Circula program due to hazardous air quality conditions. The Environmental Commission of the Megalopolis (Came) has declared a Phase 1 environmental contingency to ensure the health of the population amid dangerously high ozone levels.
The Double Hoy No Circula aims to curtail the circulation of vehicles during peak hours, specifically from 5:00 AM to 10:00 PM. This additional measure stems from recorded ozone concentrations reaching a maximum of 155 parts per billion (ppb) at the Gustavo A. Madero station. The current air quality posed a significant health risk, prompting authorities to take decisive action.
Under the Double Hoy No Circula regulations, vehicles affected include those with verification hologram 2, along with cars possessing verification hologram 1 that end with specific digits—1, 3, 4, 5, 7, and 9. Additionally, vehicles sporting verification holograms 0 and 00 with red stickers bearing plate endings 3 and 4 are also restricted. All vehicles lacking a verification hologram must comply with the limitations, as they contribute to harmful emissions.
Delivery units for liquefied petroleum gas without proper safety equipment are also included, with restrictions affecting up to half of these units based on their license plate numbers. Furthermore, local and federal cargo vehicles will not be allowed to operate from 6:00 AM to 10:00 AM, unless they are part of the Self-Regulation Program managed by either Mexico City or the State of Mexico. Similarly, taxis that possess verification holograms 00, 0, 1, or 2 will have restrictions in place from 10:00 AM to 10:00 PM.
The Hoy No Circula program applies across all 16 municipalities of Mexico City and 18 adjoining municipalities in the State of Mexico, including Atizapán de Zaragoza, Ecatepec de Morelos, and Naucalpan de Juárez. This extensive implementation illustrates the serious nature of the air quality crisis faced by residents.
As part of their encouragement for compliance, local authorities implemented penalties for violations of the Double Hoy No Circula program. Individuals caught violating these traffic restrictions will face monetary fines equivalent to 20 to 30 Units of Measurement and Update (UMA), translating to fines ranging from 2,074.8 pesos to 3,112.2 pesos. In addition, vehicles found circulating during restricted hours may be immobilized and towed to impound lots, further emphasizing the seriousness of adherence to these health guidelines.
To help citizens stay informed, the Secretario de Movilidad has provided online resources for individuals to check their vehicle's compliance status. Through this online platform, motorists can input their vehicle's verification code and license plate information to determine whether they are permitted to drive on this particular day.
The intensifying conditions in Mexico City demonstrate the need for ongoing public awareness and engagement regarding air quality issues. The activation of the Double Hoy No Circula is more than just a traffic regulation—it acts as a crucial intervention to protect public health amid escalating air pollution.
Beyond this immediate measure, long-term solutions must also be addressed. Reducing emissions and managing pollution sources highlight the importance of community efforts and government policy adjustments that prioritize environmental health and safety for all residents. The CAMe has indicated that ongoing monitoring will determine whether these restrictions need to be adjusted depending on air quality improvements.
In conclusion, on March 19, 2025, adherence to the Double Hoy No Circula restrictions is paramount for the health and well-being of the population in Mexico City and surrounding areas. As authorities continue to battle deteriorating air quality, cooperation among residents will play a pivotal role in mitigating the pollution crisis and ensuring a healthier environment.
