Introduction
Driving in foggy conditions can be a challenge for even the most experienced drivers. The reduced visibility makes it difficult to see what is ahead of you, and this can lead to accidents. To help improve visibility, many drivers choose to use their vehicle’s fog lights. But are these legal in California? In this blog post, we will discuss the laws regarding driving with fog lights in California and answer the question: Is it illegal to drive with fog lights in California?

What Are Fog Lights?
Fog lights are auxiliary lamps that are mounted on vehicles at or near ground level. They emit a wide beam of light that is directed downwards towards the road surface, providing improved illumination when driving through dense fog or other low-visibility conditions. While some vehicles come equipped with factory-installed fog lights, others require aftermarket installation of additional lighting equipment.

California Laws Regarding Driving With Fog Lights
In California, there are specific laws governing how and when you may use your vehicle’s fog lights while driving on public roads and highways. According to Section 24400 of the Vehicle Code (VC), “A motor vehicle may be equipped with not more than two side cowl or fender lamps which shall emit an amber or white light without glare...” This means that any vehicle operating within the state must have no more than two side cowl or fender lamps emitting either an amber or white light without glare – commonly referred to as “fog lights” – installed on its exterior body panels at all times while being driven on public roads and highways.

When Can You Use Your Fog Lights?
California law states that you may only operate your vehicle's fog lights under certain circumstances; specifically when visibility is impaired due to weather conditions such as rain, snow, sleet, hail, dust storms or thick smoke/fog (VC 24403). Additionally, you must turn off your fog lights once visibility has improved (VC 24404). It should also be noted that using your headlights along with your foglights is prohibited unless they have been approved by the Department of Motor Vehicles (DMV) for dual headlight operation (VC 24405).

Are There Any Penalties For Violating These Laws?
Yes - violating these laws can result in hefty fines from law enforcement officers if caught doing so illegally. Depending on where you were pulled over and what violation was committed could determine whether it would be considered a misdemeanor offense punishable by up to six months imprisonment plus court fees/fines OR an infraction resulting in a fine ranging from $35-$250 depending upon county regulations plus court fees/fines (CA VC 40508 & 40509).

Conclusion
It is important for all drivers operating within California state lines understand and abide by all applicable laws regarding proper usage of their vehicles' lighting systems including those related specifically pertaining to california fog light laws. By following these guidelines one can ensure safe travel during inclement weather conditions while avoiding costly penalties associated with violations thereof!