Updated 45Z tax credit guidance uses the GREET model to calculate incentives and could increase demand for U.S.-grown biofuel ...

The U.S. Treasury and IRS issued updated guidance on the Sustainable Aviation Fuel (SAF) tax credit, aligning with the Inflation Reduction Act’s goal to boost SAF production by providing incentives ...

Along with removing a “flawed” indirect land-use change policy, Skor praised the update for supporting the eligibility of undenatured fuel ethanol for American exports. “The new model marks an ...

The Department of Energy added new feedstock options to its model for determining eligibility and carbon intensity scores for biofuel producers under the 45Z tax credit. DOE updated the 45ZCF GREET ...

On January 10, 2025, the Treasury Department (the “Treasury”) and the Internal Revenue Service (the “Service”) continued their flurry of new guidance by releasing IRS Notice 2025-10 (the “Notice”) ...

The U.S. Department of Agriculture announced the publication Jan. 15 of interim technical guidelines for climate-smart agriculture crops used as biofuel feedstocks. The rule lays out how to ...

The Clean Fuel Production Credit, or 45Z, took effect Jan. 1, 2025, but farmers have more questions than answers at this point about how it will roll out and when. At this juncture, one of the few ...

The Treasury Department and the IRS have issued proposed regulations on Feb. 3, 2026, providing expanded guidance on the Clean Fuel Production Credit under IRC section 45Z and significantly building ...

The One Big Beautiful Bill Act (OBBBA) made several important changes to the Clean Fuel Production Credit (45Z). Most notably, it extended the credit through 2029, providing biofuels producers with an ...

On February 4, 2026, the Department of the Treasury (“Treasury”) and the Internal Revenue Service (“IRS”) published proposed regulations addressing the clean fuel production tax credit (“45Z Credit”) ...

First, for non-SAF transportation fuels whose lifecycle emissions are determined using the 45ZCF-GREET model, Proposed Reg. section 1.45Z-4 (g) (2) allows taxpayers to rely on a safe harbor if they ...