Governor Reynolds Suspended Red-Dye Diesel Penalties
Iowa drivers can now use untaxed farm fuel on roads following a new state proclamation and federal executive order.
Updated on Oct. 6, 2026 in Economic Policy

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Governor Kim Reynolds has suspended state penalties for using red-dye diesel on Iowa roads to provide relief from high fuel costs. The move follows a federal executive order signed by President Trump that allows the tax-free fuel to be used for all purposes.
Why it matters
By waiving penalties on untaxed fuel, the state aims to reduce financial burdens on drivers as diesel prices remain near record levels. The suspension aligns state enforcement with new federal guidelines designed to mitigate the impact of high energy prices.
State and federal diesel taxes total nearly 57 cents per gallon, which is now waived for red-dye fuel. The current average price of diesel in Iowa is $6.05 per gallon, slightly below the all-time high of $6.31 reached on September 21, 2026.
The players
Kim Reynolds
She is the Governor of Iowa who signed the proclamation to suspend penalties for using untaxed fuel on state roads.
Donald Trump
He is the current President of the United States who issued the executive order authorizing the use of tax-free red-dye diesel for all purposes.
The details
Red-dye diesel is traditionally designated for farm and industrial use to ensure it remains untaxed. Governor Reynolds acted after President Trump issued an executive order that effectively permits the use of this fuel for all purposes without federal tax liability.
Timeline
September 21, 2026: Diesel reached an all-time high of $6.31 per gallon in Iowa.
October 5, 2026: President Trump signed the federal executive order allowing tax-free diesel use.
October 6, 2026: Governor Reynolds signed the state proclamation to suspend local penalties.
February 2, 2027: The state suspension of penalties is set to expire.
Macro View
This policy change directly suspends enforcement of the Federal Motor Carrier Safety Administration fuel tax regulations. The move represents a significant departure from standard enforcement cycles, mirroring emergency measures taken during past periods of extreme energy volatility.
Drivers using red-dye diesel on Iowa roads will no longer face state penalties, effectively saving 57 cents per gallon in combined taxes. This change lowers immediate fuel costs for residents and businesses as long as they utilize the specific untaxed diesel until February 2027.
The takeaway
This policy provides temporary financial relief for motorists by allowing the use of cheaper farm-grade fuel on public roads. Consumers should ensure their vehicle engines are compatible with red-dye diesel before switching to avoid potential maintenance complications.
Further reading
Learn more about local fiscal regulations in Iowa Economic Policy.
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