Overview
- Authorities report no environmental contingency and no Doble Hoy No Circula for March 21, so the standard Sedema schedule applies across CDMX, 18 Edomex municipalities, and the Toluca and Santiago Tianguistenco metro areas.
- Restrictions run from 5:00 to 22:00 for vehicles with hologram 1 and odd plate terminations (1, 3, 5, 7, 9), all hologram 2 vehicles, and foreign-plated cars, which do not circulate on Saturdays.
- Vehicles with hologram 00 and 0, electric and hybrid cars, motorcycles, public transport, and designated essential services remain exempt under the program’s rules.
- CAMe indicates overall acceptable air quality with moderate PM2.5 risk, while localized stations in southern boroughs such as Tlalpan and Coyoacán have posted poor readings prompting cautions for sensitive groups.
- Noncompliance can bring fines of 20–30 UMA (about 2,346–3,519 pesos) and possible impoundment, and monitoring agencies continue hourly updates for any change in conditions.