Air Pollution Clean Air Act Nitrogen Oxides Ozone 
PA Environment Daily
JANUARY 24, 2023
and numerous affiliated companies (collectively, GWRSI) for violation of Clean Air Act (CAA) locomotive regulations. The locomotives at issue in this settlement burn diesel fuel which produces significant emissions of nitrogen oxides (NOx) and fine particulate matter.
Legal Planet
AUGUST 22, 2023
States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.
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Union of Concerned Scientists
DECEMBER 1, 2022
California has a longstanding leadership role on transportation pollution, and the Clean Air Act grants the state the right to set strong vehicle emissions standards. We in Colorado have many days of problematic ozone. We need every tool we can apply to gain healthier air. Traffic is a major concern.
The Energy Law Blog
AUGUST 24, 2012
Wiegand On August 21, 2012, the United States Court of Appeals for the District of Columbia Circuit vacated EPA’s Cross-State Air Pollution Rule (CSAPR). Circuit’s remand in 2008 of EPA’s Clean Air Interstate Rule (CAIR), which was EPA’s prior attempt at implementing the good neighbor provision.
The Energy Law Blog
SEPTEMBER 15, 2011
By: Lesley Foxhall Pietras On August 8, 2011, the Environmental Protection Agency (EPA) published a far-reaching Clean Air Act rule intended to address the interstate transport of sulfur dioxide (SO2) and nitrogen oxides (NOx) from upwind to downwind states. See 76 Fed. 48208 (Aug. See David E.
Union of Concerned Scientists
DECEMBER 12, 2023
The Cuyahoga fire, along with a major oil spill off the coast of Santa Barbara that same year, galvanized national attention and led to the first Earth Day, a slew of new air and water protection laws, and the creation of new federal departments to administer them, including the Environmental Protection Agency (EPA).
Union of Concerned Scientists
MAY 17, 2023
Earlier this month, the Environmental Protection Agency’s (EPA) Clean Air Scientific Advisory Committee (CASAC) released a draft set of recommendations calling on the EPA to tighten its current standard for ground-level ozone pollution to protect public health. But will the EPA follow CASAC’s recommendations?
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