This bill proposes several updates to current statutes regarding air emissions modeling and fuel blend feasibility studies. It mandates that the director of the department of environmental quality evaluate various gasoline blends for compliance with federal and state regulations within ninety days of the bill's effective date. The evaluation will utilize the most recent air emissions model approved by the U.S. Environmental Protection Agency and will include specific gasoline blends such as federal phase II reformulated gasoline and California phase 3 reformulated gasoline. Additionally, the director is required to publish a report detailing the findings and potential eligibility of these gasoline blends for sale in regulated areas.

Furthermore, the bill establishes a process for the associate director of the weights and measures services division of the Arizona department of agriculture to conduct a feasibility study on the identified gasoline blends within ninety days of receiving the report from the environmental quality director. This study will assess the potential impact on the state's transportation fuel supply and will also be reported to key state officials. The bill includes appropriations of $100,000 each for the department of environmental quality and the Arizona department of agriculture for the respective studies, and both sections of the bill are set to be repealed after September 30, 2027.