The EPA has proposed fully reallocating the biofuel volumes lost to small refinery exemptions, according to a report from HI-99. The agency wants every exempted gallon returned to the annual volume obligations that other refiners and importers must meet under the Renewable Fuel Standard.

For traders in Renewable Identification Numbers, the word "fully" is the trade. Reallocation keeps the program's total renewable volume target intact even as individual refineries are excused from blending. Compliance credit supply tightens. RIN prices, which historically drop when EPA grants waivers without redistributing them, have less room to fall.

Why the word "full" carries weight

It signals degree, not just intent. EPA appears ready to redistribute 100% of exempted volume to non-exempt obligated parties rather than a portion. That's the position biofuel producers and corn-state lawmakers have demanded since 2017, when small refinery hardship waivers accelerated under the Trump administration and stripped billions of gallons of effective demand from the program.

The Biden EPA started reallocating in 2022 and 2023, but it did so through annual rulemaking rather than a permanent fix. The new proposal, if finalized as a standalone rule, would lock reallocation in across administrations. That shift matters because it removes the policy whiplash that has made RIN markets volatile and refinery blend margins harder to forecast.

What it changes for obligated parties

Refiners and importers who have treated small refinery waivers as an indirect discount on their own obligations would see that math disappear. The compliance calculation looks the same as if no waiver had been granted. RIN demand stays close to the levels embedded in the annual percentage standards, regardless of how many hardship petitions EPA approves.

For ethanol and biodiesel producers, the proposal puts a floor under demand. The industry has pressed for reallocation as a way to protect the original RFS architecture, which set escalating renewable volume targets across four nested categories: cellulosic biofuel, biomass-based diesel, advanced biofuel, and conventional renewable fuel. Full reallocation doesn't restore volumes waived in past years; it stops future erosion.

Where the rulemaking goes from here

The proposal needs to publish in the Federal Register before the public comment period opens. EPA typically finalizes annual volume requirements by late November or December for the following compliance year, though the schedule has slipped in recent cycles. Until the Federal Register notice appears, the comment window and the timeline for a final rule remain unspecified.

For obligated parties planning 2026 compliance, the practical question is timing. A final rule that lands before the 2026 standards take effect would let refiners and blenders build their RIN positions around confirmed reallocation. A rule that arrives mid-year would force them to manage a transition while the market digests new obligations.

DOE's role in the SRE process is also part of the picture. Under a 2020 Tenth Circuit ruling, EPA must consult with the Department of Energy before granting hardship petitions. DOE recommendations have become a more reliable signal of which refineries will win waivers, and the reallocation rule would apply to whatever DOE-endorsed exemptions EPA ultimately grants.

That's the milestone worth watching: the Federal Register notice and the comment deadline that will set the clock for a final decision.