Biofuel producers whose fuels do not appear on the government's 45Z emissions rate table can now petition for a provisional rate through a new Energy Department process announced Wednesday — a fix to a gap that had left some credit claims in limbo.

The mechanism, called an Emissions Value Request, or EVR, gives producers a formal route to the 45Z fuel production tax credit, which favors feedstocks sourced from the United States, Mexico or Canada. Until now, producers whose fuel type, main feedstock or production pathway fell outside the official 45Z rate table had no clear way to calculate the credit's value.

"We are expanding opportunities for American fuel producers to access critical tax incentives, supporting rural economies, and bringing more American-made fuels to market," Assistant Secretary of Energy Audrey Robertson said in a statement. "In short: putting American energy first."

What does the new process require?

Under the guidance from DOE's Alternative Fuels and Feedstocks Office, the claim procedure works in two steps:

• First, transportation fuel producers must obtain the life cycle greenhouse gas emissions rate for their product using the 45Z rate table.
• If the fuel's type, main feedstock or pathway is not listed, producers must petition the Treasury Department for a provisional emission rate, known as a PER.
• The EVR process is the channel through which producers secure that rate value from DOE and submit the petition.

In plain terms: the rate table still comes first, and the EVR is the appeal route for everything the table leaves out.

How did the industry respond?

The Renewable Fuels Association, a leading ethanol trade group, welcomed the guidance, saying it gives producers more certainty about how to benefit from 45Z. That endorsement carries weight because ethanol plants have faced some of the sharpest questions about eligibility under the feedstock sourcing rules.

"Looking forward, we will continue working with DOE in hopes of further refining the process to better accommodate existing commercial ethanol facilities," said Tad Hepner, RFA's vice president for strategy and innovation, who attended a DOE announcement in Nebraska on Wednesday.

Note what that statement signals: even the trade group backing the guidance says the process is not yet a finished fit for plants already operating at commercial scale. Refinement, not resolution, is the industry's own framing.

What remains uncertain?

The guidance addresses how producers can secure an emissions rate, but DOE's announcement does not spell out how quickly the department will turn EVR requests around — a practical concern for producers working against tax-credit filing timelines. Neither does it detail the evidentiary bar a petition must clear before DOE issues a rate value.

For producers, the credit's worth still hinges on the emissions rate attached to each fuel and feedstock combination, so the EVR process is less a subsidy expansion than a paperwork path for cases the rate table missed. Whether that path moves fast enough for existing plants to use it is the question RFA has already flagged.

Hepner's commitment to keep pressing DOE on accommodating current commercial ethanol facilities suggests the industry expects further revisions as producers test the process in practice.