Arizona Revised Statutes Title 28. Transportation § 28-1204. Photo enforcement zones; signage; standards; citation dismissal

A. Except as provided in subsection F of this section, every local authority or agency of this state using a photo enforcement system shall adopt standards and specifications that indicate to a person operating a motor vehicle that a photo enforcement system is present and operational.

B. The standards and specifications adopted pursuant to subsection A of this section shall include all of the following:

C. Signs erected by a local authority or agency of this state as prescribed in this section shall contain a yellow warning notice and correlate with and as far as possible conform to the system set forth in the most recent edition of the manual on uniform traffic control devices for streets and highways adopted by the director pursuant to § 28-641.

D. If the standards and specifications prescribed pursuant to this section are not in effect during the operation of a photo enforcement system, the court may dismiss any citation issued to a person who is identified by the use of the photo enforcement system.

E. During the time a vehicle containing photo enforcement equipment is being used to identify violators of articles 3 and 6  1 of this chapter, the rear of the vehicle shall be clearly marked to indicate that the vehicle is functioning as a photo enforcement vehicle. This subsection does not apply to a vehicle that does not contain a photo enforcement system and that is used by a law enforcement officer.

F. Subsection B of this section does not apply to a mobile photo enforcement vehicle during the time a mobile photo enforcement vehicle is deployed on streets with a posted speed limit of forty miles per hour or less.