The **license plates** of vehicles must meet certain characteristics to ensure safety and the correct identification of the vehicle. One of the most important characteristics is that they must have a **retro-reflective background**.

- The retro-reflective background is crucial because it allows the plates to be visible in low-light conditions, such as at night or in bad weather situations. This improves the **visibility** of the vehicle for other drivers and for traffic authorities, facilitating its identification.

- Visibility is a fundamental aspect of road safety. Just as it is required that the vehicle's windows be clean to ensure good visibility, the license plates must be clearly visible at all times.

Therefore, having a retro-reflective background on the license plates is essential to comply with safety and visibility standards in driving.