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The Environmental Protection Agency’s final “Set 2” Renewable Fuel Standard rule for 2026–2027 has turned a policy debate into a full-blown affordability fight. The agency’s own analysis shows the rule will nudge gasoline and diesel prices higher, refiners have sued in the D.C. Circuit, and Congress is scrambling with farm‑bill and E15 options. Consumers, frankly, are left holding the tab.
What the Set 2 RFS Rule Actually Does
EPA’s Regulatory Impact Analysis projects the rule will add about $0.05 per gallon to retail gasoline and roughly $0.20 per gallon to diesel at the pump. That might sound small until you fill a truck or run a farm. The Renewable Fuel Standard forces refiners to blend more ethanol and other biofuels or buy tradable credits called RINs. Those compliance costs get passed down to drivers, truckers, and every business that moves goods. Independent analysts and refiners say the real bill is much higher than EPA’s headline numbers — estimates swing from billions into the tens of billions — but whatever the math, the people who pay are ordinary families worried about the grocery bill and the gas bill.
Refiners Sue, Congress Wrestles With the Fix
Major refiners, through their trade group, have taken EPA to the D.C. Circuit, calling the rule unlawful and impracticable. That lawsuit is the right next step for anyone who thinks rules should be made with their eyes open to real costs. At the same time, Congress faces pressure to act — from efforts to use the Congressional Review Act to blunt the rule to farm‑bill fights over year‑round E15 and carveouts for small refineries. Lawmakers can tinker with statutory changes, but that takes time and votes. Until then, voters in battleground states feel the squeeze, and Republicans would be wise to make affordability a clear priority, not a talking point.
Trump’s Diesel Move Helps, But It’s Not the Same Thing
President Trump’s executive action expanding temporary use of dyed diesel is billed as an affordability measure, and it will offer some relief to truckers and farmers. But it’s a patch, not a policy fix. Logistics, tax guidance, and legal limits mean dyed diesel won’t erase the broader price signal that the RFS feeds into fuel markets. If the administration and EPA truly want to prioritize affordability, they should use every lawful administrative tool to ease the RFS burden now — and push Congress to stop expanding mandates in the farm bill that lock in higher costs for consumers.
Conclusion — Put People, Not Mandates, First
We can have biofuel goals and national energy policy, but not at the expense of basic affordability for working families. The Set 2 RFS rule, the refiners’ lawsuit, and the farm‑bill theater make the choice plain: regulators and lawmakers must put affordability ahead of mandates. If Washington insists on more ethanol mandates while diesel and grocery bills climb, voters will remember who decided mandates mattered more than their paychecks. That should be a political lesson, and a policy one.
