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U.S. EPA Commits to Increasing Biofuel Use, Targets Not Yet Finalized

The U.S. Environmental Protection Agency is committed to increasing the use of biofuels, an agency official said on Tuesday, but the industry is still anxiously awaiting the Biden administration to finalize specific blending goals.

The Biden administration is open to using every tool to fight climate change in the transportation sector, which includes biofuels, said EPA’s Sarah Dunham, director of the Office of Transportation and Air Quality, at the National Ethanol Conference in New Orleans.

Both oil refiners and corn-based ethanol producers are paying close attention to the agency’s planned sweeping decisions on the Renewable Fuel Standard, the nation’s biofuel blending law, which is due to enter a new phase at the end of the year.

Under the RFS, oil refiners must blend billions of gallons of biofuels into the nation’s fuel mix, or buy credits from those that do. Oil refiners historically have been able to receive waivers to the obligations, known as Small Refinery Exemptions, if they can prove the rules cause them financial harm.

The Trump administration about quadrupled the number of exemptions it gave out, stoking anger from biofuel groups that claim the waivers hurt ethanol demand. The oil industry disputes that and says the waivers help keep small refiners afloat.

Last year under Biden, the EPA proposed denying all pending SREs. It will take final action on that proposal after fully considering stakeholder comments submitted on the action, Dunham said.

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Validating Net Energy in Commercial Swine Systems - Gustavo Lima

Video: Validating Net Energy in Commercial Swine Systems - Gustavo Lima


In this episode of The Swine Nutrition Blackbelt Podcast, Gustavo Lima, PhD candidate at Iowa State University, explains how soybean meal net energy is evaluated using growth assays and calorimetry. He discusses caloric efficiency, validation under commercial conditions, and differences between controlled and real-world environments. Gustavo also highlights practical implications for diet formulation and ingredient valuation. Listen now on all major platforms!

“Indirect calorimetry provides a precise estimation of ingredient energy, yet validation under production conditions remains essential for accurate application in real systems.”

Meet the guest: Gustavo Lima / gustavo-lima-a9867127 is a PhD candidate in Animal Science at Iowa State University, specializing in swine nutrition, ingredient evaluation, and energy metabolism. With over 15 years of experience across Latin America, his work focuses on soybean meal utilization, caloric efficiency, and applied research for commercial production systems.