Alaska Administrative Code
Title 13 - Public Safety
Part 1 - Division of Alaska State Troopers
Chapter 02 - Motor Vehicle and Driving Offenses: Rules of the Road
Article 7 - Speed Restrictions
13 AAC 02.295 - Minimum speed regulation

(a) No person may drive a motor vehicle so slowly as to impede the normal and reasonable movement of traffic, except when reduced speed is necessary for safe operation or in compliance with statutes, regulations, or ordinances.

(b) When the Department of Transportation and Public Facilities, or a municipality, in their respective jurisdictions, determines under sec. 280 of this chapter that slow speeds on a highway or part of a highway unreasonably impede the normal movement of traffic, the respective authority may determine a minimum speed limit not in excess of 55 miles per hour for that highway or part of a highway below which no person may drive a vehicle, except when necessary as prescribed in (a) of this section. The limit is effective when posted on fixed or variable signs.