House Advances DERA Funding Extension for Diesel Emissions Reduction

The House Energy and Commerce Committee has unanimously approved legislation to reauthorize the Diesel Emissions Reduction Act (DERA) program through fiscal 2029 at $100 million annually. The program, which provides grants and rebates for diesel vehicle replacements, retrofits, and other emissions-reduction technologies, has been instrumental in helping carriers modernize their fleets and reduce emissions. The bill now advances to the full House for consideration. DERA has been a bipartisan success story, with its competitive process and successful implementation resulting in the upgrade of a wide range of technologies across the country. According to the EPA, DERA-funded projects have reduced nitrogen oxide emissions by 499,000 tons, particulate matter emissions by 16,600 tons, and carbon monoxide emissions by 66,600 tons. The program has also reduced diesel fuel consumption by 572 million gallons over the lifetime of the affected engines and vehicles. Companion legislation in the Senate is sponsored by Sen. Sheldon Whitehouse (D-R.I.) and has bipartisan co-sponsors, but has been idle since October 2025.