Arizona Revised Statutes Title 28. Transportation § 28-721. Driving on right side of roadway;  driving on shoulder;  exceptions;  education

A. On all roadways of sufficient width, a person shall drive a vehicle on the right half of the roadway except as follows:

B. On all roadways, a person driving a vehicle proceeding at less than the normal speed of traffic at the time and place and under the conditions then existing shall drive the vehicle in the right-hand lane then available for traffic or as close as practicable to the right-hand curb or edge of the roadway, except when overtaking and passing another vehicle proceeding in the same direction or when preparing for a left turn at an intersection or into a private road or driveway.

C. In an age restricted community that is located in an unincorporated area of a county with a population of more than three million persons, a person may drive a golf cart or a neighborhood electric vehicle on a paved shoulder that is adjacent to a roadway or as close as practicable to the right-hand curb or edge of a paved roadway if there is no delineated paved shoulder.

D. Defensive driving school courses that are offered by defensive driving schools operated pursuant to chapter 8, article 7 of this title   1 and traffic survival schools operated pursuant to chapter 8, article 7.1 of this title   2 shall include educational information relating to subsections A and B of this section.  The department shall include information relating to subsections A and B of this section in any of the department's examination, information and education materials.