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.

Regulations 130

Regulations Ozone Air Pollution Clean Air Act 130

Environment, Law, and History

AUGUST 27, 2023

Dan Farber at Legal Planet recently posted on "Cars, Smog, and EPA" An excerpt: For the first 20 years of federal regulation, Congress set the NOx [nitrogen oxides] standards for new cars itself. That’s quite different from the standards for industrial pollution sources, which Congress has always delegated to EPA.

Nitrogen Oxides 52

Nitrogen Oxides Clean Air Act Pollution Control 2004 52

Union of Concerned Scientists

JUNE 14, 2023

It asserts that for matters of vast economic or political significance, a federal agency must point to explicit congressional authorization. It sets a framework for states and utilities across the country to fully reckon with their power plants’ carbon emissions. billion to $5.9 billion.

Fossil Fuels 207

Fossil Fuels Carbon Emissions Nitrogen Oxides Clean Air Act 207