Clean Fuels asks US treasury department for policy stability, additional 45Z guidance

Clean Fuels Alliance America submitted comments to the U.S. Department of the Treasury April 10 on Notice 2025-10, which outlined an intent to propose rules for the 45Z clean fuel production credit.

Clean Fuels urged the treasury department to ensure a level playing field for American farmers by eliminating penalties for speculative indirect effects assigned to U.S. crop feedstocks.

Clean Fuels also urged the department to adhere to the legislative language indicating that coprocessed fuels do not qualify for the credit.

The trade association thanked the treasury department for moving forward on the 45Z rules, which are consistent with the Trump administration’s goal to unleash American energy.

“With the 45Z credit already in effect, the clean-fuels industry appreciates clarity on related implementation issues through either guidance and/or rulemaking,” Clean Fuels wrote.

“Biofuels are essential to U.S. farm security,” said Kurt Kovarik, Clean Fuels’ vice president of federal affairs.

“The unfinished rules for the clean fuel production credit are creating intolerable uncertainty for U.S. farmers and biodiesel and renewable diesel producers, putting jobs, economic opportunity and growth in domestic energy production at risk,” he said.

“Clean Fuels asks that treasury and Congress level the playing field for farmers and fuel producers, supporting continued growth and innovation in domestic energy production,” Kovarik added.

A copy of Clean Fuels’ comments is available here.