What percentage must sun screening devices have for light transmittance?

The requirement for sun screening devices in Texas is that they must allow at least 25% of light to be transmitted. This standard is in place to ensure that drivers maintain adequate visibility while driving, which is crucial for safety on the road. Devices that do not meet this threshold may compromise the driver's ability to see clearly, particularly in varying light conditions. Adhering to this guideline helps to promote safety not only for the driver but also for other road users.

The other percentages listed do not align with the legal requirements established by the state of Texas and thus would not be considered acceptable for compliance with safety regulations.