IL SB1869

Creates new definition of "mid-range ethanol blend" as gasoline blended with at least 20% but less than 51% denatured ethanol, applicable to Use Tax Act, Service Use Tax Act, Service Occupation Tax Act, and Retailers' Occupation Tax Act.

Establishes tax treatment for mid-range ethanol blends at 80% of sales proceeds from July 1, 2023 through December 31, 2030, and 100% of proceeds thereafter.

Modifies "gasohol" definition to reference maximum ethanol percentages authorized by EPA under Clean Air Act Section 211, replacing previous fixed 10% ethanol requirement.

Changes "majority blended ethanol fuel" definition to specify 51-83% ethanol by volume per ASTM Standard DS798-11 for flexible fuel vehicles.

Extends tax exemption for majority blended ethanol fuel through December 31, 2030 (previously expired December 31, 2023).