Ohio and South Dakota get extra year for gassy gasoline
Published Date: 3/20/2025
Rule
Summary
The EPA is giving Ohio and nine South Dakota counties an extra year—until April 28, 2026—before they have to stop using a special gasoline rule that lets them use more volatile fuel. This extension helps these areas get ready for the change without rushing. Drivers and fuel sellers in these places get more time to adjust, with no new costs announced yet.
Analyzed Economic Effects
4 provisions identified: 3 benefits, 1 costs, 0 mixed.
One-year extension for Ohio and nine SD counties
The EPA pushed back the date when Ohio and nine counties in South Dakota must stop using the 1.0-psi gasoline volatility waiver from April 28, 2025 to April 28, 2026. This gives drivers and fuel sellers in those areas an extra year to use the higher-volatility E10 gasoline and to prepare for the change.
More time for Ohio refiners and distributors
Refiners, pipeline operators, terminals, and fuel distributors supplying Ohio have until April 28, 2026 to make capital investments and physical changes (for example, debottlenecking units or adding storage) needed to produce and deliver low-RVP gasoline. EPA says Ohio’s lack of existing infrastructure and its geographic separation from other petitioning States contributed to the decision to extend the deadline.
Delay for nine SD counties after refinery explosion
Nine counties in western South Dakota (Butte, Custer, Fall River, Harding, Lawrence, Meade, Oglala Lakota, Pennington, and Perkins) now have until April 28, 2026 to comply because an explosion at the Newcastle, Wyoming refinery in February 2025 idled that refinery and reduced pipeline supply to the area. EPA says the outage would likely have caused a significant gasoline shortage for summer 2025 without the extension.
Other Applicable States keep April 28, 2025 deadline
For Illinois, Iowa, Minnesota, Missouri, Nebraska, Wisconsin, and most of South Dakota (all South Dakota counties except the nine named counties), the removal of the 1.0-psi ethanol waiver remains effective on April 28, 2025 as listed in the rule's table.
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Key Dates
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