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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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EPA: 1.78 billion RINs generated in November

By Erin Krueger

December 19, 2025

Policy Business Advanced Biofuels Cellulosic/Advanced  Biogas Sustainable Aviation Fuels 

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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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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The U.S. EPA on Nov. 20 released data showing more than 1.98 billion renewable identification numbers (RINs) were generated under the RFS in October, down from 2.17 billion generated during the same month of last year.

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The Coalition for Renewable Natural Gas and American Fuel & Petrochemical Manufacturers in September filed separate lawsuits challenging the U.S. EPA’s final rule to partially waive 2024 cellulosic blending obligations under the RFS.

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