EPA Proposes Reallocation of 770 Million RINs, Impacting 2026 and 2027 RFS Obligations

The U.S. Environmental Protection Agency (EPA) has announced a proposed rule to reallocate 770 million Renewable Identification Numbers (RINs) that were waived through small refinery exemptions (SREs) for the 2025 compliance year. This proposal, formally published in the Federal Register, outlines two primary approaches: either dividing the 770 million RINs equally between the 2026 and 2027 RFS compliance years, or reallocating the entire volume to 2027. The EPA's decision follows its August 31 announcement regarding 34 compliance year 2025 SRE petitions, where 29 refineries received full or partial exemptions, totaling 1.76 billion RINs. This figure significantly exceeded the EPA's initial estimate of 990 million RINs for 2025, prompting the current reallocation effort to ensure the integrity of the Renewable Fuel Standard program. This development is crucial for practitioners in the renewable fuels industry, including refiners, blenders, and biofuel producers. The reallocation directly translates to increased RIN obligations for non-exempt obligated parties in 2026 and/or 2027. This could lead to higher compliance costs, as companies will need to acquire more RINs to meet their mandates. For biofuel producers, this could signal stronger demand for their products, potentially stabilizing or increasing RIN prices. The uncertainty surrounding which allocation method will be finalized (split or full 2027) also creates a planning challenge, requiring businesses to model different scenarios. This move fits within a broader trend of the EPA actively managing the Renewable Fuel Standard program to balance the interests of various stakeholders while striving to meet renewable fuel targets. The agency has consistently adjusted its approach to SREs and RIN reallocation in response to market dynamics, legal challenges, and policy objectives. Previous adjustments, such as the establishment of supplemental volumes for 2026 and 2027 in anticipation of SREs, highlight the EPA's ongoing efforts to provide market certainty while upholding the RFS mandates. The current proposal is a direct consequence of the larger-than-expected SRE grants for 2025, demonstrating the agency's commitment to restoring lost volumes and maintaining the program's effectiveness. In practice, practitioners should closely monitor the EPA's public hearing scheduled for November 4 and the subsequent comment period, which extends through December 4. Engaging in this process can provide valuable input and help shape the final rule. Companies should also begin modeling the financial implications of both reallocation scenarios to prepare for increased RIN procurement. This may involve adjusting hedging strategies, evaluating biofuel supply contracts, and assessing the impact on overall fuel costs. Furthermore, staying informed about potential legislative or legal challenges to the EPA's decision will be critical, as these could introduce further shifts in compliance requirements.