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EPA grants waivers for California’s on-highway heavy-duty vehicle and engine emission standards

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The US Environmental Protection Agency (EPA) is granting two waivers of preemption regarding four California Air Resource Board (CARB) regulations related to California’s heavy-duty vehicle and engine emission standards. In this instance, CARB requested two waivers for regulations relating to heavy duty vehicles and engines.

EPA 210
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EPA to develop options to reduce NOx and PM from locomotives further

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The US Environmental Protection Agency (EPA) is responding to petitions from the California Air Resources Board, the San Joaquin Valley Air Pollution Control District, and the California Air Pollution Control Officers Association to address harmful nitrogen oxide (NO x ) and particulate matter (PM) emissions from locomotives.

EPA 305
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CARB and truck and engine manufacturers announce partnership to meet climate and emission reduction goals

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In March, the EPA approved California’s waiver under the federal Clean Air Act that allows the state to become the first in the world to require zero-emissions technology for trucks. Daimler Truck North America; Ford Motor Company; General Motors Company; Hino Motors Limited, Inc.; Isuzu Technical Center of America, Inc.; Navistar, Inc.;

Emissions 305
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Cummins Westport B6.7N natural gas engine receives near zero emissions certifications; full NG engine portfolio now certified near zero

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has received certifications from both the US Environmental Protection Agency (EPA) and California Air Resources Board (ARB) for its B6.7N natural gas engine. Like the Cummins Westport ISX12N and L9N engines, the B6.7N g/bhp-hr, a 90% reduction from engines operating at the current EPA NO x limit of 0.2

Engine 259
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EPA launches Cleaner Trucks Initiative to update NOx standards for heavy-duty trucks

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The US Environmental Protection Agency (EPA) has launched the Cleaner Trucks Initiative (CTI) to further decrease NO x emissions from on-highway heavy-duty trucks and engines. The US has made major reductions in NO x emissions, but it’s been nearly 20 years since EPA updated these standards.

EPA 249
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In-use emissions report for Achates heavy-duty OP diesel shows substantial margin to most stringent EPA NOx proposed regulation

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Achates Power has released initial in-use NO x measurements from the cleaner, heavy-duty diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners. Option 1 from EPA is similar in many respects to the CARB regulation. Earlier post.). Earlier post.)

EPA 170
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EPA selects ANSYS for simulation software to develop advanced test engine

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Streamlines showing intake process for an SI engine in a FORTE simulation. The US Environmental Protection Agency (EPA) has selected ANSYS simulation solutions to model in-cylinder combustion to develop an advanced test engine that will demonstrate fuel-saving and emissions-reducing technologies. Source: ANSYS. Click to enlarge.

EPA 210