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Zero emission buses are worth reaching for, but emission performance standards are the low-hanging fruit

Sales of battery electric buses (BEBs) are surging in major cities around the world. Los Angeles, California committed to shift its 2,200 bus fleet to zero-emission buses (including BEBs) by 2030,...Sales of battery electric buses are surging, yet a complete technology transition won't happen overnight. Meanwhile, tightening emission standards on conventionally powered buses would have immediate...
Published 2017.11.16: Blog Post

Evaluation of emission-control scenarios for agricultural tractors and construction equipment

The market for agricultural tractors and construction equipment in India is growing rapidly. Without further regulatory action to control emissions from these sources, they are expected to surpass on...
Published 2016.12.23: Publication

Technology pathways for diesel engines used in non-road vehicles and equipment

Internal combustion engines are ubiquitous in today’s society. Applications for these engines cover a broad spectrum, ranging from vehicles that transport passengers and move goods to specialized...
Published 2016.09.16: Publication

Urban off-cycle NOx emissions from Euro IV/V trucks and buses

Despite meeting more stringent regulatory standards for exhaust emissions during type approval, many Euro IV and Euro V heavy-duty vehicles equipped with selective catalytic reduction (SCR) systems...
Published 2012.04.10: Publication