EPA May Launch National Effort To Speed Diesel Emission Reductions

EPA is considering a national program to encourage or require diesel trucks to implement costly software fixes to reduce air pollution, but the agency is likely to face opposition from engine manufacturers even if the program is voluntary. The move is being considered because EPA erred in calculating how long it would take to make the fix and reduce emissions, after finalizing a landmark 1998 consent decree that required the engine industry to fund these changes. State air regulators hoping...