When are headlights required in Puerto Rico?

Headlights are required from sunset to sunrise and during poor visibility conditions in Puerto Rico because this rule ensures that drivers can see the road clearly and be seen by others, thereby enhancing safety. During the nighttime, visibility is significantly reduced, making headlights essential for safe driving. Additionally, poor visibility conditions, such as rain, fog, or other environmental factors, necessitate the use of headlights to improve the driver's ability to see the road and other vehicles. This practice aligns with standard driving regulations across many regions, which prioritize safety by requiring adequate lighting during times when visibility is compromised.