Seat belts and child seats in San Luis Potosí (2026)
Last reviewed: 9 October 2026
In short: Anyone under 12, or who by physique needs it, must travel in the rear seats of a motor vehicle with a child restraint system or safety seat that meets the applicable Mexican Official Standard. Vehicles must be equipped with seat belts for all occupants, but the Law read does not state a duty to use them.
| Rule | What applies |
|---|---|
| Seat belt compulsory in front seatsPassenger cars | ⚠ Not yet verified |
| Seat belt compulsory in rear seatsPassenger cars | ⚠ Not yet verified |
| Child restraint required untilPassenger cars | Anyone under 12, or who by physique needs it, must travel in the rear seats of motor vehicles with a child restraint system or a safety seat that meets the requirements of the applicable Mexican Official Standard (NOM). [1] |
| Children in the front seatPassenger cars | Anyone under 12, or who by physique needs it, must travel in the rear seats of motor vehicles. [1] |
| Rear-facing child seat in front with active airbagPassenger cars | ⚠ Not yet verified |
Notes
- Article 19 IV requires motor vehicles to be equipped with seat belts for all occupants under the applicable NOM. That is an equipment requirement, and the Law read does not state a duty to wear them. The text is the Orden Jurídico Nacional compilation with reforms up to 14 June 2024; later reforms were not checked.
Sources
- Orden Jurídico Nacional (Secretaría de Gobernación): Ley de Tránsito del Estado de San Luis Potosí (compilation with reforms up to P.O. 14 June 2024) (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 San Luis Potosí
- Car speed limitsBuilt-up areas: 30 km/h secondary; 50 km/h primary avenues · Outside built-up areas (single carriageway): 80 km/h
- Minimum age for a car driving licenceMinimum age for a car licence: 18 (permit from 16)
Related pages
General information, not legal advice. Rules change: check the official source before you fly or ride.