Clean Air Act Government Nitrogen Oxides Regulations 
Legal Planet
OCTOBER 5, 2023
The transportation sector is also a substantial source of nitrogen oxides and particulates, both of which are dangerous to human health. EPA is an effort by conservative states and fuel suppliers to block EPA regulations of greenhouse gas emissions from motor vehicles under the Clean Air Act. Q: Hi, Sean.
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. Over 10,000 UCS supporters chimed in with EPA in support of granting California’s ability to enforce its truck regulations. We need you to do even better!
Legal Planet
JANUARY 3, 2024
While it’s unclear to this observer whether and how regulatory takings rules can effectively be applied in the quasi-legislative context, the facts of the Sheetz case are not particularly favorable to the government defendants. So El Dorado County appears to be facing an uphill battle in the Sheetz case. Raimondo, No. Jarkesy, No.
Legal Planet
AUGUST 2, 2023
That does not mean, however, that states and utilities are similarly constrained from generation shifting as they develop ways to comply with the federal regulations. Still, the fact that this draft rule follows the passage of the Inflation Reduction Act of 2022 (“IRA”) has enabled the EPA to be relatively stringent.
Union of Concerned Scientists
JUNE 14, 2023
EN: These standards—or at least something based on the same Clean Air Act provision—have been in the works for a long time. But, as you noted, despite all the groundwork leading up to the 2015 rule, the Clean Power Plan was immediately challenged, and in 2016—before it went into effect—the Supreme Court stayed the rule.
Union of Concerned Scientists
JUNE 3, 2024
Because of this, regulators worked closely with impacted businesses, community advocates, and technical and policy experts (like UCS!) Other Frequently Asked Questions… What are the climate benefits from the ACF Regulation? Such meaningful and transformative efforts are not free from hiccups, however.
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