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

Green Car Congress

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. CARB has asked EPA for additional time before the Agency acts on the waiver request for this regulation.

EPA 210
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Ford aside, automakers are fighting EV-focused EPA emissions targets

Green Car Reports

Despite professed support for EVs, many automakers are quietly fighting proposed EPA emissions rules that would require expanded EV sales, according to the National Resources Defense Council (NRDC).

EPA 149
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EPA to develop options to reduce NOx and PM from locomotives further

Green Car Congress

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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EPA proposes strengthening primary annual NAAQS for PM2.5

Green Car Congress

The US Environmental Protection Agency (EPA) announced a proposal to to revise the primary (health-based) annual PM 2.5 EPA is taking comment on the full range (between 8 and 11 10 µg/m 3 ) included in the Clean Air Scientific Advisory Committee’s (CASAC) latest report. Currently, EPA has primary and secondary standards for PM 2.5

EPA 273
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CARB and truck and engine manufacturers announce partnership to meet climate and emission reduction goals

Green Car Congress

The terms of the Clean Truck Partnership include: CARB will align with EPA’s 2027 regulations for NO x emissions. CARB also will modify elements of the 2024 NO x emission regulations for which manufacturers will provide offsets as necessary to maintain California’s emission targets. Isuzu Technical Center of America, Inc.;

Emissions 305
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In-use emissions report for Achates heavy-duty OP diesel shows substantial margin to most stringent EPA NOx proposed regulation

Green Car Congress

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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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. —Cliff et al.

Emissions 397