When are drivers required to have their headlights on?

Drivers are required to have their headlights on starting 1/2 hour after sunset until 1/2 hour before sunrise to ensure visibility during periods of reduced light. This requirement is in place to enhance safety for both the driver and other road users. Having headlights on during these times enables drivers to see well enough to navigate the road safely and allows other drivers and pedestrians to see them more easily.

This rule is part of Massachusetts driving regulations, promoting safer driving conditions during twilight and nighttime. By enforcing this guideline, the risk of accidents during low-light conditions is minimized. Although there are situations, like heavy rain or fog, when headlights should be used for visibility, the specific requirement of 1/2 hour after sunset until 1/2 hour before sunrise makes it clear when headlights must be used to comply with state laws.