ANKENY, IOWA (August 11, 2025) — The Iowa Biodiesel Board has applauded the proposal to expand Renewable Volume Obligations (RVOs) for 2026 and 2027 in written comments to the US Environmental Protection Agency, calling it a win for American energy security and rural economies. The group called the Renewable Fuel Standard, now in its twentieth year, one of the most successful energy policies in US history.
“If the proposed biomass-based diesel volumes become law, we thank the administration for keeping the RFS strong and relevant for the next twenty years,” said Grant Kimberley, IBB executive director. “Higher RVOs mean stability for producers, opportunity for farmers and continued growth for the biodiesel industry.”
In the comments, submitted August 8, IBB urged EPA to level the playing field between biodiesel and renewable diesel by equalizing RIN generation. Under the proposed rule, renewable diesel would earn 1.6–1.7 RINs per gallon while biodiesel would earn only 1.5, despite both using the same feedstock pool and delivering the same benefits to American energy independence.
The board also stressed the need for feedstock diversification to keep the industry economically viable, especially under new restrictions tied to the 45Z Clean Fuels Tax Credit. IBB proposed no RIN reduction for feedstocks from USMCA trading partners and a 50% reduction for those from outside the bloc — a balance between prioritizing domestic feedstocks and maintaining flexibility for growth.
IBB further called for strict RVO enforcement across all obligated parties and reallocation of any Small Refinery Exemptions to protect market stability.
“As we celebrate the RFS’s legacy, we must also focus on its future,” Kimberley said. “Fair rules, strong volumes and smart feedstock policy will keep biodiesel delivering for farmers, consumers and the environment.”
Kimberley also thanked Iowa’s Congressional delegation — Senators “Chuck” Grassley and Joni Ernst, and Representatives Randy Feenstra, Zach Nunn, Mariannette Miller-Meeks, and Ashley Hinson — for their continued leadership and unified support for Iowa’s biofuel producers and soybean growers.
About the Iowa Biodiesel Board
The Iowa Biodiesel Board represents the biodiesel industry in Iowa, from the farmers who grow the feedstock, to production, through distribution to end users. Founded by the Iowa Soybean Association, IBB operates an independent organization and board. For more, visit IowaBiodiesel.org.
