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Sustainability glossary

Section 45Z

Also called clean fuel production credit

A U.S. tax credit created by the Inflation Reduction Act of 2022 for low-emission transport fuel produced from 2025, scaled by carbon intensity. As amended in 2025, it uses the 45ZCF-GREET model, excludes ILUC for fuel produced after 2025 and restricts feedstocks to North America.

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