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NREL converts lignin into a nylon precursor with microbes

In the wild, P. putida naturally produces β-ketoadipic acid. NREL scientists used genetic engineering to make the process more prolific. Figure by Allision Werner, NREL

October 3, 2024

BY U.S. Department of Energy

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New Mexico agency approves rule to implement Clean Transportation Fuel Program

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By Erin Krueger

13 hours ago

Policy Markets Advanced Biofuels Cellulosic/Advanced  Biogas Sustainable Aviation Fuels 

The New Mexico Environmental Improvement Board on Jan. 22 unanimously adopted regulations implementing a Clean Transportation Fuel Program, making New Mexico the fourth U.S. state to adopt a clean fuel standard.

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The U.S. EPA on Jan. 15 released data showing nearly 23.25 billion renewable identification numbers (RINs) were generated under the Renewable Fuel Standard in 2025, down more than 8% when compared to 2024.

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The U.S. EPA on Dec. 18 released data showing 1.78 billion RINs were generated under the RFS in November, down from 2.05 billion generated during the same month of 2024. Total RIN generation for the first 11 months of 2025 reached 21.11 billion.

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Reps. Sharice Davids, D-Kan.; Mike Flood, R-Neb.; Troy Carter, D-La.; and Tracey Mann, R-Kan., on Dec. 9 introduced legislation that aims to reinstate the 45Z clean fuel production credit premium for SAF and extend the 45Z credit through 2033.

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The U.S. Department of Energy on Dec. 1 announced it has renamed the National Renewable Energy Laboratory as the National Laboratory of the Rockies. The change is effective immediately, according to the agency.

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