Alaska Left Lane Law

Alaska generally requires slower-moving vehicles outside urban districts to use the right-hand lane or stay as close as practicable to the right side of the roadway. On a two-lane highway where passing is unsafe, a slower driver with five or more vehicles lined up behind must use the nearest safe turnout to allow traffic to pass.

Alaska's primary keep-right rule is found in 13 AAC 02.050.

On roadways outside an urban district, a vehicle traveling below the maximum authorized speed of traffic generally must be driven in the right-hand lane or as close as practicable to the right-hand curb or edge of the roadway.

This rule does not apply when the driver is overtaking and passing another vehicle traveling in the same direction or when preparing for a lawful left turn at an intersection or into an alley, private road or driveway.

Alaska also has a specific turnout requirement on two-lane highways outside urban districts. When passing is unsafe because of oncoming traffic or other conditions, a slower driver with five or more vehicles lined up behind must leave the roadway at the nearest designated turnout, or another location with sufficient room for a safe turnout, to allow following traffic to pass.

Alaska's passing rules also require an overtaking driver to pass safely on the left and not return to the right lane until safely clear of the overtaken vehicle.

Alaska therefore follows a slower-traffic keep-right model, with an additional five-vehicle turnout rule designed to prevent long traffic backups on two-lane highways.

Exceptions

  • Overtaking and passing another vehicle traveling in the same direction.
  • Preparing for a lawful left turn at an intersection or into an alley, private road or driveway.
  • Traveling on certain marked or divided roadways where another lane position is lawful.
  • Traveling on a roadway restricted to one-way traffic.
  • Avoiding an obstruction when moving left is necessary and safe.

Penalties

Violations of Alaska's keep-right and roadway-use regulations may result in a traffic citation.

The exact fine and total amount due can depend on the specific violation and applicable court or administrative assessments. Drivers should verify the amount shown on the citation or with the court handling the case.

Official Source

13 AAC 02.050 - Driving on Right Side of Roadway; Exceptions and Special Situations

Last verified: October 11, 2026