The Senate Environment and Public Works Subcommittee on Clean Air and Nuclear Safety held a hearing September 24 to examine solutions to curbing black carbon emissions. Panelists and members praised the role of the Diesel Emissions Reductions Act, and many, including Chairman Tom Carper (D-DE) and Ranking Member Jeff Sessions (R-AL), advocated for continued funding of the program. Chairman Carper also advocated for extending the program to diesel engines used in construction.