When are you required to use your headlights in Connecticut?

Using headlights in Connecticut is legally mandated from a half-hour after sunset to a half-hour before sunrise, which is the time when it is naturally dark and visibility is significantly reduced. Additionally, headlights are required during periods of poor visibility regardless of the time of day. This includes conditions caused by factors like fog, heavy rain, or snow, where visibility can be severely impaired, making it difficult for drivers to see and be seen.

The rationale behind this requirement is to enhance safety for all road users, as well-lit vehicles are more visible to others, reducing the likelihood of accidents. While using headlights during rain and snow is important for safety and is a best practice, the law specifically requires headlights in these situations primarily when visibility is compromised, which must be assessed by the driver. Hence, option C captures both mandatory light usage during specific hours and also emphasizes the importance of visibility, aligning with Connecticut's traffic safety laws.