Railroads Are Running Dirty Diesel Trains Through Communities and No One Is Doing Anything About It
Union of Concerned Scientists
JUNE 17, 2025
We can rebuild it—we have the technology (and lax regulations) Under the Clean Air Act, the Environmental Protection Agency sets emissions standards for engines in new locomotives. Beginning in 2001, emissions regulations were phased in for newly built locomotive engines, along with requirements for rebuilt engines.
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