In Mexico City and the State of Mexico, traffic regulations are especially important to ensure orderly and safe traffic. Although many owners believe they can customize their vehicles to their liking, legal provisions establish clear restrictions to prevent modifications that jeopardize traffic flow or the safety of pedestrians and drivers.
Within these regulatory frameworks, the Traffic Regulations specify penalties for vehicles that fail to meet certain criteria, such as the use of license plate holders that obscure the visibility of license plates. These regulations seek to maintain proper identification of vehicles on public roads, reduce accidents, and strengthen surveillance.
It is worth noting that those who travel regularly between the two territories should consider important differences between the regulations of Mexico City and the State of Mexico, as noncompliance with these regulations can result in significant fines, as stipulated in the corresponding laws.
According to Article 43 of the Mexico City Traffic Regulations, it is prohibited to install or use on motor vehicles “neon lights and/or license plate holders that obstruct the visibility of the information contained on the vehicle’s license plates and/or transparent or dark-tinted lenses or sheets on the plates themselves.”
It also states that “failure to comply with the obligations outlined in this provision will be punishable by a fine equivalent to 10, 15, or 20 times the current Unit of Measurement and Update.”
However, the Mexico State Traffic Regulations do not establish any prohibition regarding the circulation of vehicles with license plate holders, but if you drive frequently in Mexico City, it is important to note that you may receive fines.
License plate holders are illegal when they obscure license plate information, so only those with a thin frame that does not obstruct the visibility of all information may be used.
Among those not permitted are those delivered to car dealerships, which usually include the name of the branch that sold the car.
Other prohibitions in Mexico City
According to Article 43 of the Mexico City Traffic Regulations, the installation or use of treads on metal wheels or tires or other traction mechanisms that damage the rolling surface is prohibited. Failure to comply with the obligations outlined in this provision will result in a fine equivalent to 20, 25, or 30 times the current Unit of Measurement and Update, which also applies to “modifications to the vehicle’s exhaust system intended to cause excessive noise.”
The use of glaring headlights that do not comply with Mexican Official Standards and that also endanger the safety of drivers or pedestrians is also penalized. Violation of this regulation will result in a fine equivalent to 10, 15, or 20 times the current Unit of Measurement and Update.
On the other hand, the use of radar detectors or speed cameras is punishable by a fine equivalent to 40, 45, or 50 times the current Unit of Measurement and Update.
In addition, horns that produce excessive noise or a sound different from the original, as well as solar control films (tinting) or side or rear window tinting by more than 20%, carry a fine equivalent to 20, 25, or 30 times the current Unit of Measurement and Update.
If required for medical reasons, they must be certified by the Ministry, and this must be stated on the vehicle registration card.

Source: infobae