Headlight lighting law — Alaska Permit Test

Alaska law requires headlights from 1/2 hour after sunset to 1/2 hour before sunrise.

Twilight is when eyes are adjusting and shapes blur, so lights help others see you before it is fully dark.

Headlights must be turned on from 1/2 hour after sunset to 1/2 hour before sunrise.

Headlights must be turned on in daytime when fog, rain, snow, smoke, or dust reduces visibility to 1000 feet or less.

In fog or snow your car can blend into the gray, and headlights make you visible to others long before they reach you.

Headlights must be turned on in daytime when visibility is reduced to 1000 feet or less by fog, rain, snow, smoke, or dust.

Change your headlights to low beam 500 feet or more from an oncoming vehicle.

High beams blind an oncoming driver, who then cannot see you or the road while you pass each other.

Change headlights to low beam (dim) 500 feet or more from oncoming vehicle.

Change your headlights to low beam 300 feet or more from a vehicle going in the same direction.

Your high beams glare off the mirrors of the car ahead and can dazzle its driver.

Change headlights to low beam (dim) 300 feet or more from vehicle going in the same direction.

Parking lights denote a parked vehicle; do not drive using only parking lights, day or night.

Other drivers read parking lights as a car that is not moving, so a moving car showing only parking lights misleads them.

Parking lights denote a parked vehicle. Do not use only parking lights, day, or night, when vehicle is in motion.

During what hours does Alaska law require headlights to be on?

Half an hour after sunset to half an hour before sunrise. Twilight is when eyes are adjusting and shapes blur, so lights help others see you before it is fully dark. Alaska Driver Manual, p.67: “Headlights must be turned on from 1/2 hour after sunset to 1/2 hour before sunrise.”