Which of the following is not a Florida equipment standard?

The presence of tinted windows is not a requirement outlined in Florida's equipment standards for vehicles in the same way that the other options are. While Florida does have specific laws regarding window tinting—such as permissible levels of tint on various windows—there is no equipment standard mandating that all vehicles must have tinted windows. This means that having tinted windows is more of a personal choice or optional feature rather than a legal requirement like the need for a functional horn, visible license plate lights, and working windshield wipers, which are all essentials for vehicle safety and compliance on the road.

In contrast, the requirement for a white light to make the license plate visible ensures that vehicles are identifiable and can be properly documented by law enforcement. The horn's audible range is crucial for safety, as it allows the driver to alert others of their presence. Functional windshield wipers are also mandatory for maintaining visibility in adverse weather conditions. Understanding these critical safety features is key in driver education and reinforcing safe driving practices.