Diesel Emissions Reduction Act of 2025

Diesel Emissions Reduction Act of 2025 would reauthorize the Diesel Emissions Reduction Program (DERA) under the Energy Policy Act of 2005 by extending its authorized period from 2024 to 2029. The bill carries the shorthand title “Diesel Emissions Reduction Act of 2025” and does not create new funding levels or program changes in its text; it simply keeps the existing DERA framework in place for five additional years. The legislation was introduced in the Senate on July 10, 2025, by a bipartisan group of sponsors and sent to the Committee on Environment and Public Works for consideration.