President Donald Trump signed an executive order on September 28, 2024, allowing truckers to use red-dyed diesel fuel—typically reserved for off-road use—on highways without federal penalties through the end of the year. The order also directs the U.S. Treasury Secretary to explore eliminating the deferred tax obligation entirely.
Retail diesel prices reached a record national average of $6.30 per gallon in September, according to AAA, prompting the administration to act amid political pressure ahead of the November 3 midterm elections. The move targets frequent diesel users, including truckers and farmers, who rely on the fuel for transportation and agricultural equipment.
Immediate Impact and Key Details
The executive order waives federal penalties for using off-road diesel on public roads, but it does not eliminate the 24.4-cent federal excise tax per gallon. Instead, the tax is deferred until December 31, 2024, with the Treasury Department tasked to assess whether the obligation can be permanently removed. State excise taxes, which average 35.5 cents per gallon nationally, remain unaffected and are not subject to the order.
Red-dyed diesel is chemically identical to standard on-road diesel but is dyed red to indicate its tax-exempt status for off-road use, such as in construction, farming, or heating. The fuel is not subject to federal or state excise taxes when used for permitted purposes. Under the new order, truckers may use it on highways without federal penalties, though states retain the authority to enforce their own laws prohibiting its use on public roads.
Broader Context: Fuel Price Pressures
Diesel prices have surged due to supply chain disruptions, including Ukraine’s attacks on Russian refineries and reduced exports from Russia and China. The Strait of Hormuz, a critical shipping route, has also seen increased tensions, further constraining global oil product flows. The U.S. average diesel price peaked at $6.52 per gallon in late September before easing slightly, though it remains $2.60 higher than the same period last year, per AAA data.
Political and Economic Implications
The order comes as Republicans face competitive midterm races in farm-heavy states like Iowa, where diesel costs directly impact agricultural operations. Critics argue the measure provides limited short-term relief, as deferred taxes may still be owed later. Any Lipow, president of Lipow Oil Associates, noted that while truckers might save money upfront, the deferred tax could negate long-term benefits. States like Iowa and Illinois have taken independent steps to ease diesel costs, including tax waivers or rebates, but these vary by jurisdiction.
Enforcement and Compliance Challenges
While federal penalties for using red-dyed diesel on highways are waived, enforcement remains uncertain. State troopers could still enforce local laws prohibiting its use, creating potential legal risks for truckers. The American Trucking Associations has not yet commented on the order, but industry analysts warn that the complexity of compliance may deter widespread adoption.
Expert Perspectives
Energy analysts highlight that the order addresses a symptom of broader supply constraints rather than the root cause of high diesel prices. Willa Rubin of NPR emphasized that the fuel’s chemical composition is unchanged, and its red dye serves only as a regulatory marker. The S&P Global Energy analysis underscored that the measure does not increase diesel supply but may temporarily reduce costs for targeted users.
Long-Term Considerations
The Treasury Department’s review of the deferred tax obligation could lead to permanent changes in diesel taxation, though no timeline has been set. Policymakers in states with high diesel taxes may face renewed pressure to act independently, as federal relief remains partial and temporary. The order’s effectiveness will depend on coordination between federal and state authorities, as well as market responses to global supply dynamics.