EPA Clears Backlog of Refinery Biofuel Waivers, Sparking Fears for Ethanol Demand

The U.S. Environmental Protection Agency (EPA) has approved the bulk of long-pending waiver requests from small oil refineries under the federal biofuels mandate, a move that has triggered alarm within the ethanol and biodiesel industries over potential demand destruction.

In its September announcement, the EPA confirmed it had granted 63 full exemptions and 77 partial exemptions, while rejecting 28 applications. In doing so, the agency has effectively cleared a backlog of 204 requests that had piled up since 2016 amid years of legal disputes and political wrangling.

According to EPA data, the approvals correspond to roughly 5.34 billion renewable identification numbers (RINs)—compliance credits used under the Renewable Fuel Standard (RFS). However, given the two-year lifespan of RINs, only 1.39 billion RINs retain real compliance value and can still be used for blending obligations.

The American Fuel & Petrochemical Manufacturers (AFPM), which represents refiners, has yet to comment on the decision.

Ethanol Industry Demands Redistribution

Biofuel groups reacted sharply. Growth Energy, a leading ethanol trade association, urged the EPA to ensure that every waived gallon is offset by redistributing blending obligations to other refiners. “EPA must ensure that all exempted volumes are reallocated in its forthcoming rulemaking to mitigate what could otherwise be devastating impacts on biofuel demand,” said CEO Emily Skor.

Market Reaction

EPA officials said a proposal on waiver redistribution will be published shortly. Following the announcement, RIN prices linked to ethanol blending jumped to over $1.16 per credit in afternoon trading, up from $1.07 the previous day, reflecting renewed uncertainty over future compliance requirements.

Outlook 

The decision highlights the long-standing tension between refiners seeking cost relief and biofuel producers seeking demand certainty. While EPA’s backlog clearance brings procedural clarity, the real battle now shifts to whether redistributed obligations can safeguard biofuel demand—a decision with major implications for corn farmers, refiners, and the broader clean fuels market.

Bottom line: By wiping the slate on years of waiver requests, the EPA has reignited a core debate—who bears the burden of America’s biofuel mandate, and at what cost to the energy transition?