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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

FEBRUARY 5, 2020

Manufacturers continue to optimize diesel emission controls, such as DOC, DPF and SCR, in order to promote uniform catalyst coating, improve NO x conversion efficiency, reduce back pressure on the engine, and reduce thermal mass. Better catalysts and urea dosing systems can achieve high NOx conversion during lower temperature operation.

Emissions 291
Emissions Diesel Engine 2010 291
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MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

Green Car Congress

JUNE 11, 2019

The MECA assessment is based on the implementation timeline presented by CARB staff at a January 2019 public workshop as well as the assumptions laid out in the CARB staff white paper released in April 2019. The cost of controlling NO x to 0.05 g/bhp-hr in 2024 and to 0.02

Standards 191
Standards Diesel 2019 Emissions 191
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