Draft regulations for the Clean Fuel Production Credit (CFPC), part of the Inflation Reduction Act (IRA), were released on Friday January 10 by the US Treasury Department and the Internal Revenue Service (IRS).

These rules outline the implementation of the 45Z tax credit, which replaces the $1-per-gallon Blenders Tax Credit that expired at the end of 2024.

The Treasury Department is requesting public comments by April 10.

The released guidance provides new clarity for transportation fuels seeking CFPC eligibility, with notable implications for feedstocks such as animal fats, oils and used cooking oil (UCO).

Central to the regulations is the introduction of the 45ZCF-GREET model, a lifecycle emissions tool designed to evaluate credit eligibility. This model emphasizes low-carbon intensity (low-CI) materials and highlights the importance of verifiable data and feedstock origin.

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