EPA Grants Partial Relief as It Rules on Six Small Refinery Exemption Petitions

The U.S. Environmental Protection Agency (EPA) has issued final decisions on six petitions from four small refineries seeking exemptions from Renewable Fuel Standard (RFS) obligations for the 2023 and 2024 compliance years. The decisions follow reviews conducted in consultation with the Department of Energy (DOE), including consideration of economic factors and information submitted by each refinery.

EPA granted a 100% exemption to one petition and 50% exemptions to two others, while determining that three petitions were ineligible. No petitions were denied outright. The decisions represent final agency actions and establish how EPA will implement RFS relief when an exemption is granted.

The ruling also sets out EPA’s interpretation of Section 211(o)(9) of the Clean Air Act, which governs small refinery exemptions. The agency said its decisions were based on statutory requirements, its review of the individual petitions, consultation with DOE and findings from the DOE Small Refinery Study.

The latest actions provide clarity for refiners navigating their renewable fuel compliance obligations while also shaping how EPA will approach future exemption requests. For the broader renewable fuels market, the decisions could influence the balance between refinery compliance costs and demand for renewable fuel credits under the RFS.

The mixed EPA response (one 100 percent exemption, two 50 percent exemptions, three ineligible) illustrates the case-by-case nature of small-refinery exemption decisions. No blanket approval combined with meaningful partial relief signals that EPA is applying substantive analysis rather than mechanical processing. The Section 211(o)(9) interpretation framework establishes precedent for future exemption reviews.

For the renewable-fuels market, the pattern reduces some uncertainty but maintains the structural question of how exempted RIN volumes affect overall market balance. Renewable fuel producers face demand-elasticity effects from exemption decisions; refineries face compliance-cost effects from exemption denials. The market clears at prices that reflect both dimensions.

For refiners, biofuel producers, RIN traders and financial institutions supporting renewable-fuels-market investment, Cognitud's supply chain and operations, market intelligence and sustainability due diligence teams help clients evaluate exemption-outcome exposure across the refinery portfolio, structure RIN-trading and compliance strategies aligned with the interpretive framework, and prepare disclosures aligned with RFS, ISSB and jurisdictional fuel-sustainability frameworks that increasingly determine competitive positioning across US renewable-fuels markets.