Environmental Protection Agency (EPA) administrator Lee Zeldin stressed Wednesday that the US is working quickly to propose and finalize new biofuel blend mandates.
EPA last week sent proposed Renewable Fuel Standard volumes for 2026 — and likely at least one future year — to the White House Office of Management and Budget for review, the final step before a draft rule can be released. Zeldin referenced that process at a Senate hearing Wednesday and said "we expect the proposed rule to be finalized and released very soon."
Asked by US senator Pete Ricketts (R-Nebraska) whether the agency was planning on releasing something by summer or fall, Zeldin said he was eyeing a "much, much faster" timeline.
"We'll finalize this as quickly as we possibly can," he said.
Zeldin has stressed at recent House and Senate hearings that the agency is expediting the months-delayed rulemaking. Under the Renewable Fuel Standard, EPA requires oil refiners and importers to blend annual amounts of different types of biofuels into the conventional fuel supply. EPA decisions on volume mandates — and on requests for exemptions from small refiners — are highly influential for crop feedstock demand, biofuel production margins and retail fuel prices.
Zeldin said last week at a House subcommittee hearing that EPA was also weighing what to do with a backlog of requests from small refiners for exemptions from program requirements.
"None of these were getting approved at all in the last administration," Zeldin said. "We want to get caught up as quickly as we can."
EPA has not commented more recently on its specific timeline and plans, but the agency said earlier this year that it wanted to get the frequently delayed biofuel program back on its statutory timeline. The Clean Air Act requires new volumes to be finalized 14 months in advance of a compliance year, which in this case would require proposed volumes for 2027 to be released soon for public comment and then finalized before November this year.
A coalition of industry groups, including the American Petroleum Institute and Clean Fuels Alliance America, have pushed the agency to hike the biomass-based diesel mandate from 3.35bn USG this year to a record-high 5.25bn USG next year. Other groups, including fuel marketers, have urged more caution given a sharp drop in biofuel production to start 2025 and uncertainty about the future of a federal clean fuel tax credit being renegotiated in Congress.
As part of the White House process, outside groups can seek meetings with the Trump administration to present their views on a pending regulation. Meetings are scheduled through 4 June on the proposed volumes — and through 9 June on a related rule to cut last year's cellulosic biofuel quota — though the US has expedited the process before. Last year, President Joe Biden's administration cancelled previously scheduled meetings on the initial proposal to cut cellulosic targets as a way to more speedily exit the review process.
