Updated 45Z Rules Shift Biofuel Incentives Toward Feedstocks

Clearer 45Z rules favor U.S. oilseeds, but final RFS volumes remain critical to locking in demand.

20160602_072042.jpg

These photos are from an ARPA-E event hosted by Danforth, the Department of Energy, and the University of Arizona. At the time, this was the world’s largest robot conducting research on sorghum as an enhanced biofuel crop. (2025)

Tony St. James

NASHVILLE, Tenn. (RFD NEWS) — Federal guidance on the 45Z Clean Fuel Production Tax Credit now more clearly steers biofuel incentives toward U.S.-grown crops, strengthening demand signals for domestic agriculture while narrowing eligibility for imported alternatives. Updated Treasury proposals implement changes enacted in the One Big Beautiful Bill Act (OBBBA) and clarify how the credit will function through 2029.

The revised guidance, to be published Wednesday in the Federal Register, prioritizes North American feedstocks, including U.S. soybeans and canola, while limiting eligibility for fuels made from imported waste oils such as used cooking oil and tallow. Industry groups say that change realigns biofuel policy with farm production rather than overseas sourcing.

A key shift is the removal of indirect land use change penalties from carbon scoring. That adjustment materially improves the economics for soy-based biofuels, effectively increasing the value of the credit and expanding eligibility across more oilseed pathways.

The update also underscores that 45Z works best alongside a strong Renewable Fuel Standard. Without complementary blending targets, the tax credit alone may not fully translate into sustained demand growth.

Farm-Level Takeaway: Clearer 45Z rules favor U.S. oilseeds, but final RFS volumes remain critical to locking in demand.
Tony St. James, RFD NEWS Markets Specialist
Related Stories
Land equity protects solvency but does not replace profitability.
Reliable canal infrastructure supports long-term access to global agricultural markets.
Corn export pace remains the bright spot, but stable ethanol export demand remains a critical support for corn markets.
Alan Bjerga of the National Milk Producers Federation discusses the Dairy Margin Coverage program, recent improvements, and what producers need to know ahead of this week’s enrollment deadline.
Glyphosate and phosphorus are deemed critical to U.S. national defense, ensuring farmers’ access while signaling a shift toward regenerative agriculture. RealAg Radio host Shaun Haney shares insight on the Trump Administration’s move and what it could mean for U.S. farmers moving forward.
Ag leaders say President Donald Trump’s State of the Union is unlikely to spark major agriculture headlines, but ongoing tariff uncertainty and trade policy remain key concerns, as does the debate around glyphosate and the status of the next Farm Bill.

Tony St. James joined the RFD-TV talent team in August 2024, bringing a wealth of experience and a fresh perspective to RFD-TV and Rural Radio Channel 147 Sirius XM. In addition to his role as Market Specialist (collaborating with Scott “The Cow Guy” Shellady to provide radio and TV audiences with the latest updates on ag commodity markets), he hosts “Rural America Live” and serves as talent for trade shows.

LATEST STORIES BY THIS AUTHOR:

The debate now matters as much as the policy — market rules and regulatory clarity depend on whether Congress can finish the bill this year.
Domestic beef demand remains solid, with the strongest growth occurring through retail channels, according to consumers surveyed in the latest K-State Meat Demand Monitor.
Stronger fuel demand supports corn usage despite a steady production pace.
Fertilizer still consumes an unusually large share of crop value.
Pollination costs remain volatile, raising planning risk for specialty crop producers.
The USDA Agricultural Outlook Forum highlights modest price support from tighter supplies across cotton, grains, dairy, livestock, and sugar into 2026.