Ariz. Rev. Stat. § 49-583
B. The task force shall:
5. Develop and implement policies, standards and criteria for certifying eligible motor vehicles as being reduced emission vehicles if they are substantially lower emitting in actual use than vehicles generally purchased in the area. The task force shall not certify any reduced emission vehicle or group of vehicles unless the task force has evidence of all of the following:
G. If a major employer's travel reduction plan fails to achieve the target goals, the task force shall direct the staff to work with the employer to increase alternative modes of usage and reduce vehicle miles traveled in keeping with regional goals and to submit a plan addendum outlining activities aimed at correcting the plan deficiencies, unless the major employer's current efforts are judged to be sufficient based on: