Planning to drive in or through Mexico City — or just passing through on a road trip? The capital's Hoy No Circula program restricts which cars can be on the road each day, and it applies to visitors too. Foreign-plated vehicles get no free pass, and getting caught without a permit means a tow truck, impound fees and a fine running to several thousand pesos.
The scheme covers all 16 delegations of Mexico City plus 18 neighbouring municipalities in the State of Mexico. Which days you can drive depends on the last digit of your licence plate and the code on your emissions hologram. Cars without local plates are classed as 'foreign' and are banned from driving at least one weekday between 5 a.m. and 10 p.m. — and if there's no emissions sticker on the windshield at all, the car is also off the roads every weekday morning until 11 a.m.
For most travellers, the answer is the Tourist Pass. It exempts your vehicle for a defined period: either 14 days once every six months, or two blocks of seven days per six months, plus a three-day pass for long holiday weekends. You apply online, print two permits (one for Mexico City, one for the State of Mexico) and display them in the windshield. The catch: your car must have been built in 1993 or later. Cars under eight years old with plates from Mexico City, the State of Mexico or seven nearby states can't apply — they're expected to get emissions-tested locally instead.
Residents and frequent visitors have another route: an annual verification at an approved testing centre, which produces a holographic sticker. Stickers coded 00, 0 or 'Exempt' allow unrestricted driving (though even these are restricted during environmental contingencies, when bad air triggers blanket bans). A '1' sticker means one weekday and two Saturdays a month off the road; a '2' sticker means one weekday plus every Saturday.
Some vehicles are simply exempt: electric or solar cars, disabled and classic plates, hearses, school buses, emergency and federal transport vehicles.
Enforcement is real. Police actively pull non-compliant drivers, and a violation costs a fine of 20 to 30 days of UMA (a government index unit) plus roughly 2,000–3,000 pesos in towing and impound release fees — a few hundred US dollars and half a day of hassle, minimum.
Why it matters: Mexico City sits at the heart of most Mexican road trips, whether you're flying in and renting a car or driving the full route through the country. A quick check of the government's online calendar tool before you travel — entering your plate number and sticker code (choose 'Autos Foráneos' if you have no sticker) — tells you exactly which days your car can move. Sort the Tourist Pass online before departure, keep the printed permits visible, and you'll avoid the fines entirely.
