Alaska Administrative Code
Title 13 - Public Safety
Part 1 - Division of Alaska State Troopers
Chapter 03 - Commercial Motor Vehicle and Driving Offenses: Rules of the Road
Article 1 - Traffic-Control Devices
13 AAC 03.005 - Obedience to and required traffic-control devices

(a) A pedestrian and a driver of a commercial motor vehicle shall obey the instructions of an applicable official traffic-control device placed and displayed in accordance with the provisions of AS 28, 13 AAC, or an ordinance, unless otherwise directed by a police officer or other authorized person directing traffic, or as provided for in 13 AAC 02.517 and 13 AAC 02.520 for emergency vehicles.

(b) A provision of this chapter that requires an official traffic-control device may not be enforced against an alleged violator if, at the time and place of the alleged violation, an official traffic-control device is not operable or is not in a position that is sufficiently visible and legible so as to be observed by a reasonably observant person.

(c) When an official traffic-control device is placed in a position and displayed under the requirements of this chapter, the device is presumed to have been placed and displayed by an official act or direction of lawful authority, and is presumed to comply with the requirements and provisions of this chapter unless the contrary is established by competent evidence.