Seat belts and child seats in Aguascalientes (2026)
Last reviewed: 9 October 2026
In short: Seat belts are compulsory for drivers and passengers, with rear belts required where the car is fitted with them. Children use rear-facing, forward-facing or booster seats by age and weight up to 8 years or 27 kg, placed in the rear seats when the car has them; the booster seat covers ages 4 to 8 above 18 kg. State authorities fine not wearing a seat belt 6 to 10 UMA.
| Rule | What applies |
|---|---|
| Seat belt compulsory in front seatsPassenger cars | Yes [1] |
| Seat belt compulsory in rear seatsPassenger cars | Yes [1] |
| Child restraint required untilPassenger cars | Children travel in a child restraint until age 8 or 27 kg: a rear-facing seat under 1 year or under 9 kg, a forward-facing seat from 1 to 4 years or 9 to 18 kg, and a booster seat from 4 to 8 years or over 18 up to 27 kg. Passengers over 8 or over 27 kg use the seat belt. [1] |
| Children in the front seatPassenger cars | The child seats required for children up to 8 years or 27 kg must be placed in the rear seats when the car has them. The minimum measure in article 304 also requires anyone under 12 to travel in the rear seats. [1] |
| Rear-facing child seat in front with active airbagPassenger cars | ⚠ Not yet verified |
| Booster seat untilPassenger cars | Passengers aged 4 to 8 who weigh more than 18 kg and up to 27 kg must travel in a booster seat (asiento elevado), facing forward, in the rear seats when the car has them. Passengers over 8 or over 27 kg use the seat belt. [1] |
| Fine for not wearing a seat beltPassenger cars | Not wearing a seat belt (driver and passengers) is a medium infraction. State authorities fine medium infractions 6 to 10 UMA; municipalities set their own sanctions for infractions within their competence. [1] |
Notes
- Article 138 exempts private vehicles that were not originally fitted with rear belts.
- Article 304, fracción VI sets the minimum measure that anyone under 12 travels in the rear seats with a child restraint or safety seat; article 309 sets the age and weight bands for drivers of cars.
- The law text read does not state a rule on rear-facing child seats and an active front passenger airbag.
- Article 378 gives these UMA ranges for sanctions set by state authorities. Municipal traffic authorities apply their own sanctions for infractions within their competence.
Sources
- H. Congreso del Estado de Aguascalientes: Ley de Movilidad y Seguridad Vial del Estado de Aguascalientes (última actualización 22-05-2026) (consulted 9 October 2026) · all sources
National rules that also apply
These rules are set at national level in Mexico and apply here too, alongside the rules above. All national rules for Mexico
| Seat belt compulsory in front seats (Federal roads) | Yes (source: Diario Oficial de la Federación (Secretaría de Gobernación)) |
|---|---|
| Seat belt compulsory in rear seats (Federal roads) | Yes (source: Diario Oficial de la Federación (Secretaría de Gobernación)) |
| Children in the front seat (Federal roads) | In cars and vans (vagonetas), children under 7 must travel in the rear seats. (source: Diario Oficial de la Federación (Secretaría de Gobernación)) |
| Fine for not wearing a seat belt (Federal roads) | 20 to 25 times the daily quota (cuota diaria), which the regulation defines as one UMA. The same fine applies to a child under 7 in a front seat. (source: Diario Oficial de la Federación (Presidencia de la República)) |
More rules in Aguascalientes
- Car speed limitsBuilt-up areas: 30 km/h secondary streets; 50 km/h primary roads · Outside built-up areas (single carriageway): 80 km/h (state highways; 50 km/h in urban zones)
- Minimum age for a car driving licenceMinimum age for a car licence: 18
- Using a mobile phone while drivingHolding a phone while driving banned: Banned · Hands-free use: Hands-free, one earpiece
- Drink-driving limitsBlood alcohol limit for ordinary drivers: 0.05% (0.25 mg/L breath)
Related pages
General information, not legal advice. Rules change: check the official source before you fly or ride.