The administration authorized an emergency measure enabling highway vehicles to utilize untaxed agricultural diesel and suspending related federal fuel levies to address exorbitant pump prices.
Donald Trump signed an emergency order allowing tax-free red dye diesel to be used for highway vehicles.

FactVerify
Source: factverify.com
Key Evidence
The chief executive enacted emergency protocols allowing commercial transport to utilize dyed agricultural fuel.
Federal fuel tariffs ranging from 24.3 to 24.4 cents per gallon are paused until December 31.
This intervention targets record diesel expenses exceeding six dollars per gallon driven by international market shortages.
What the Evidence Shows
Executive action came in response to record fuel costs climbing past six dollars for each gallon.washingtonpost.comwashingtonpost.comRed Dye Diesel Trump Hormuz Prices Iran WarWhat it Does: The order temporarily waives the traditional off-road-only requirement for "red-dyed" diesel, allowing highway vehicles (like semi-trucks and farm transport vehicles) to use it International crude constraints and geopolitical instability impacting refineries, particularly regarding Russia and Iran, drove the rapid price escalation. The temporary decree lifts standard agricultural fuel limitations so that commercial trucks and farming transports can safely burn the red-tinted product.
cbsnews.comcbsnews.comTrump Red Dyed Diesel Executive OrderIt also defers the federal diesel excise tax (which is normally roughly 24.3 to 24.4 cents per gallon) through the end of the year+2 more
Furthermore, the directive suspends the usual federal fuel duty, valued between 24.3 and 24.4 cents per gallon, until the conclusion of the calendar year.time.comtime.comUs Dyed Diesel Federal Highway Tax Fuel Costs Trump FarmersIt also defers the federal diesel excise tax (which is normally roughly 24.3 to 24.4 cents per gallon) through the end of the year Why it was Issued: The action was taken in response to soaring diesel prices—which climbed past $6 a gallon...+1 more