Emissions EPA Legal Standards 
Green Car Congress
DECEMBER 21, 2022
The US Environmental Protection Agency (EPA) finalized more stringent NO x emissions limits for model year 2027 and later heavy-duty engines and vehicles. Relative to current rules, the new standards are more than 80% stronger, increase useful life of governed vehicles by 1.5–2.5 times longer. times longer. Earlier post.).
Green Car Reports
JUNE 9, 2022
Five automakers have filed a motion to intervene on the side of the EPA, against a legal challenge to California's ability to set its own stricter emissions standards.
Green Car Congress
SEPTEMBER 19, 2019
This action is based on the premise that federal law preempts state and local tailpipe greenhouse gas (GHG) emissions standards as well as zero emission vehicle (ZEV) mandates. The action finalizes parts of the SAFE Vehicles Rule that was first proposed on 2 August 2018. Earlier post.)
Green Car Congress
DECEMBER 14, 2012
In response to a court order, the US Environmental Protection Agency (EPA) finalized an update to its national air quality standards for harmful fine particle pollution (PM 2.5 ), including soot, setting the annual health (primary) standard at 12 µg/m 3. This includes an annual standard of 15.0 ?g/m standard of 35?
Green Car Congress
DECEMBER 20, 2010
The petition challenges the ability of EPA to grant a partial waiver for three specific reasons: The Clean Air Act does not authorize EPA to issue any partial waiver decisions. Our concern is that EPA prematurely granted the partial waiver before critical studies on the effects of E-15 use were completed. Earlier post.).
Green Car Congress
NOVEMBER 2, 2015
EPA issued a second notice of violation ( NOV ) of the Clean Air Act (CAA) to Volkswagen AG, Audi AG and Volkswagen Group of America, Inc., alleging emissions cheating. liter engines for model years (MY) 2014 through 2016 that results in increased NO x emissions of up to nine times EPA’s standard. Earlier post.).
Green Car Congress
JANUARY 18, 2021
Toyota Motor Sales USA and Toyota Motor Engineering & Manufacturing North America for systematic, longstanding violations of Clean Air Act emission-related defect reporting requirements, which require manufacturers to report potential defects and recalls affecting vehicle components designed to control emissions.
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