US Senate Advances Farm Bill 2.0 with Year-Round E15 in Focus

The US Senate Committee on Agriculture, Nutrition, and Forestry has advanced the Agricultural Act of 2026, moving the long-awaited Farm Bill 2.0 another step forward.

For the biofuels industry, one provision stands above the rest: permanent nationwide authorization for year-round sales of E15. Yet the bill's significance extends far beyond the ethanol blend wall.

Its energy title also seeks to strengthen federal support for biorefineries, clarify eligibility for sustainable aviation fuel financing, expand markets for biobased products, and simplify access to rural energy programs.

The proposal is not yet law, and its path through the full Senate remains uncertain. Nevertheless, its advancement provides a clearer view of how agricultural, energy, and rural development policies could intersect over the years to come.

Key Takeaways

• The Senate Agriculture Committee has advanced Farm Bill 2.0, formally titled the Agricultural Act of 2026.
• The bill would permanently authorize nationwide year-round E15 sales, addressing a persistent source of regulatory uncertainty for the ethanol market.
• Title IX would clarify sustainable aviation fuel eligibility for the Biorefinery Assistance Program and restore support for pilot- and demonstration-scale biorefineries.
• The proposal would also expand federal procurement of biobased products and streamline access to rural energy programs.
• Committee passage is an important step, but further Senate support will be needed before the legislation can become law.

What Is the Farm Bill 2.0?

The Agricultural Act of 2026 is designed to update and extend federal agriculture and rural-development programs through fiscal year 2031. It covers the broad policy areas traditionally addressed through the farm bill, including:

• Commodities

• Conservation

• Trade

• Nutrition

• Credit

• Rural development

• Research

• Forestry

• Energy

• Crop insurance

The Senate Agriculture Committee describes the legislation as a response to economic conditions that have changed considerably since the previous farm bill became law in 2018. Its stated goals include strengthening the farm safety net, improving rural infrastructure, modernizing conservation programs, expanding agricultural research, and creating new markets for US-grown products.

For low-carbon fuel participants, the central question is:

How will the package in the Farm Bill 2.0 translate its broad goals into more durable demand and investment signals?

Why Does Permanent Year-Round E15 Matter?

The Farm Bill 2.0 would permanently authorize the year-round sale of E15 nationwide. E15 is gasoline blended with 15% ethanol, compared with the 10% blend commonly sold across the United States.

This provision matters because summer sales of E15 have repeatedly depended on temporary federal action. Seasonal uncertainty can complicate decisions for fuel retailers, distributors, ethanol producers, and agricultural suppliers.

Permanent authorization would establish a more predictable operating environment and remove the need to revisit the same regulatory question each year.

That does not mean E15 demand would increase automatically or uniformly. Retail infrastructure, consumer access, gasoline demand, regional economics, and implementation details would still influence market adoption. However, a permanent federal framework could give more businesses the confidence to plan around E15 as a lasting part of the US fuel mix.

For corn growers and ethanol producers, the provision also represents an opportunity to expand domestic demand for an established agricultural commodity and fuel pathway. Its broader market impact would depend on how quickly additional retailers and consumers adopt the higher-blend option.

How Would the Bill Support Bioenergy and Sustainable Aviation Fuel?

The bill's energy title reaches beyond conventional ethanol. According to the Senate committee's title-by-title summary, Title IX would improve the Biorefinery Assistance Program and explicitly clarify that SAF is eligible for program funding.

That clarification could be meaningful for developers facing the difficult transition from technical potential to commercial-scale production. SAF projects often require substantial capital, reliable feedstock strategies, and confidence in long-term demand. Federal financing support cannot resolve every development risk, but clearer eligibility can improve the policy framework surrounding investment.

The bill would also restore grants to develop, construct, or retrofit pilot- and demonstration-scale biorefineries. This addresses another important part of the commercialization challenge: helping technologies move from research and early testing toward larger-scale deployment.

Other energy provisions would strengthen the BioPreferred Program, which promotes the purchase and use of biobased products through federal procurement requirements and voluntary product certification. This will help to create markets for renewable agricultural materials while reducing reliance on petroleum. 

Furthermore, the bill offers improvements to reporting on federal purchases of biobased products and simplifies applications under the Rural Energy for America Program. Together, these measures point toward a broader policy objective. Using federal procurement, financing, and technical assistance will create markets and reduce barriers for rural energy and biobased manufacturing.

What Should Biofuel Market Participants Watch Next?

It’s important to reiterate that committee passage is progress, not the finish line.

In his statement following the committee's action, Chairman John Boozman acknowledged that additional votes will be needed to move the legislation forward. The bill must still navigate the full Senate and any process needed to reconcile it with legislation from the House of Representatives before reaching the president.

Market participants should therefore distinguish between the direction of travel and enacted policy. The proposal signals meaningful Senate committee support for year-round E15, biorefinery investment, SAF eligibility, and rural energy programs. The timing, final language, funding, and implementation of those provisions remain subject to the legislative process.

The most immediate issues to monitor include:

• Whether year-round E15 remains intact as the bill advances
• How the Senate builds the broader support needed for passage
• Whether the SAF and biorefinery provisions change during negotiations
• How final funding and implementation details affect access to federal programs
• How the final legislation aligns with wider US biofuel, agricultural, and tax policy

The Farm Bill 2.0 is broad by design. But its biofuels provisions are more than secondary additions.

They connect agricultural demand, rural investment, fuel policy, and emerging low-carbon technologies. If enacted in their current form, they could provide greater certainty for existing ethanol markets while helping the next generation of bioenergy projects move closer to commercial deployment.

Follow the Policies Reshaping Biofuels Markets

Policy developments rarely affect one part of the biofuels value chain in isolation. Changes to blending rules, agricultural markets, project financing, and low-carbon fuel support can influence demand, feedstock competition, investment, and trade.

Prima CarbonZero brings these developments together with pricing, fundamentals, trade data, and expert analyst commentary to help market participants understand what policy changes mean for their decisions.

Learn more about Prima CarbonZero and book a personalized demonstration to see how our intelligence can help you make sense of this complex market.