Louisiana farmers and timber harvesters can temporarily use untaxed dyed diesel in certain highway vehicles under an emergency order aimed at easing record fuel costs during harvest season.
Gov. Jeff Landry signed the executive order Tuesday, and the relief took effect Wednesday, September 23. It suspends Louisiana's penalty for using dyed diesel in qualifying vehicles registered as Class 2 Forest Products or Class 5 Farm Use while they are engaged in agricultural or timber-harvesting operations.
The state relief runs through October 22 unless the order is changed or ended earlier.
Dyed diesel is chemically similar to highway diesel but is colored to identify it as fuel sold without the road-use taxes normally collected on highway fuel. It is commonly stored by farms and forestry operations for tractors, skidders, irrigation pumps and other off-road equipment.
State Relief Does Not Automatically Erase Federal Rules
The executive order addresses Louisiana penalties, but federal tax rules still matter.
Landry directed the Louisiana Department of Revenue to request corresponding federal penalty relief from the Internal Revenue Service by the end of the week. Until federal relief is granted, operators should not assume the state order by itself eliminates federal restrictions on using untaxed dyed fuel on public highways.
Louisiana Farm Bureau reported that off-road dyed diesel was approximately 44 cents per gallon cheaper than taxed highway diesel when the order was issued.
Why the State Acted
The governor's office said Louisiana's average retail diesel price had reached $6.03 per gallon, an all-time state high, amid tight national distillate inventories.
The order cites U.S. distillate fuel inventories running 12.5 percent below the five-year average while net exports remain near five-year highs.
For agriculture, the timing is particularly difficult. Fuel is a major input cost during harvest, when tractors, trucks and other equipment operate for long hours and producers have limited ability to postpone work while waiting for prices to fall.
The American Sugar Cane League estimated the temporary change could save Louisiana sugarcane farmers more than $8 million during the 2026 harvest season. That estimate comes from the industry organization and will depend on actual fuel use and prices.
A Narrow, Temporary Measure
The order does not make dyed diesel legal for every Louisiana driver.
Its state-level penalty suspension is limited to the specified farm and forest-product vehicle classifications and qualifying operations. It also does not resolve the broader causes of high diesel prices.
The measure instead gives farmers and timber operators access to fuel many already have stored on site while Louisiana seeks matching federal relief.
For producers facing harvest decisions now, the difference between taxed highway diesel and existing off-road fuel can translate into meaningful operating savings.
Whether those savings last beyond October will depend on fuel markets and any further action by state or federal officials.
Disclosure: Gov. Jeff Landry is a current advertiser with Cajun Conservatism. The advertising relationship had no role in the selection or factual treatment of this story.
Source Notes
Office of Gov. Jeff Landry, Sept. 23, 2026: https://www.gov.louisiana.gov/news/5178
Louisiana Farm Bureau News, Sept. 22, 2026: https://lafarmbureaunews.squarespace.com/news/2026/9/22/governor-jeff-landry-declares-emergency-allows-farmers-and-loggers-to-use-cheaper-off-road-dyed-diesel-on-louisiana-roadways
WAFB, Sept. 23, 2026: https://www.wafb.com/2026/09/23/landry-declares-emergency-help-farmers-loggers-cope-record-diesel-prices/
