Senate Bill 1477 Summary

• Modifies gasoline fuel formulation standards for Area A (counties with population of 1.2 million or more) by implementing seasonal requirements: ASTM D4814 standards from April-October and California phase 2 reformulated gasoline from November-March.

• Changes Area C gasoline reformulation requirements to comply with ASTM D4814 standards from April-October instead of the previous federal and California phase II reformulated gasoline options.

• Allows registered suppliers and oxygenate blenders to petition for alternative fuel standards during supply shortages, with petitions decided within seven days and reauthorizable for up to 30 additional days.

• Requires the Department of Environmental Quality to adopt rules for implementation, recordkeeping, reporting, and analytical methods to demonstrate fuel compliance with new standards.

• Makes the bill's provisions conditional on EPA approval of the proposed fuel formulation modifications as part of Arizona's state implementation plan for air quality by July 1, 2024.