
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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The U.S. EPA on March 27 announced the RFS cellulosic waiver credit (CWC) price for 2025 has been set at $1.91, up from $1.61 for 2024. The CWCs are being made available due to the agency’s decision to reduce the 2025 cellulosic RVO.
The U.S. EPA on March 27 finalized the 2026 and 2027 RFS RVOs at levels higher than originally proposed. The increase is attributed to the decision delay implementation of provisions penalizing imported fuels and feedstocks until 2028 or later.
Nearly 1.65 billion RINs were generated under the RFS in February, down 10% when compared to the same month of last year. Total RIN generation for the first two months of 2026 reached 3.44 billion, down 2% when compared to the same period of 2025.
The U.S. EPA on Feb. 19 released data showing nearly 1.68 billion renewable identification numbers (RINs) were generated under the Renewable Fuel Standard in January, down 9% when compared to 1.84 billion RINs generated in January 2024.
The U.S. Department of Defense’s Defense Advance Research Projects Agency on Feb. 13 announced plans to support research to develop novel catalysts to enable the conversion of biomass into chemicals.