Alaska Stat. § 41.21.866
The commissioner of transportation and public facilities shall administer the plan and program providing for the establishment and maintenance of footpaths, bridle paths, bicycle paths, ski trails, dog sled trails, motorized vehicle trails, and other paths and trails along certain designated existing highways, or when a highway, road or street is being constructed, reconstructed, or relocated after June 7, 1972. Trails established under an approved plan submitted by the Department of Transportation and Public Facilities may be used for those types of uses written into the plan. A uniform system of marking the paths and trails established under this section shall be established by the commissioner of transportation and public facilities.
AS 41.21.866