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State Air Regulations Can Go Above and Beyond National Standards 

Legal Planet

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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Air Regulators Tackle Trucking at Southern California Warehouses

Clean Energy Law

A local air district approved a rule requiring warehouses to adopt clean technologies or pay a mitigation fee. At a contentious board hearing on May 7, 2021, the South Coast Air Quality Management District (SCAQMD) approved a first-in-the-nation rule to regulate trucking emissions from warehouses by a 9-4 vote. By Joshua T.

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Improving EPA’s Latest Ozone Transport Rule

Acoel

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs. ppb by 2025.

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Celebrating Ozone Layer Protection Milestones of the Clean Air Act

EPA

Ozone layer protection in the United States reaches an important milestone in 2020. Environmental Protection Agency (EPA) has been helping to protect and heal the Earth’s stratospheric ozone layer by phasing out ozone-depleting substances (ODS). But why is ozone layer protection so important? For 30 years the U.S.

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Cars, Smog, and EPA

Legal Planet

NOx plays a role in forming ground level ozone and final particulates (PM2.5), both of which are human health hazards. For the first 20 years of federal regulation, Congress set the NOx standards for new cars itself. That’s quite different from the standards for industrial pollution sources, which Congress has always delegated to EPA.

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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

California’s leadership on reducing truck pollution has been on full display the past few years, passing critical regulations requiring 90 percent reduction in smog-forming nitrogen oxide (NO X ) emissions from diesel trucks and requiring manufacturers sell an increasing share of electric trucks to move away from fossil fuels altogether.

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DEP Posted 56 Pages Of Permit-Related Notices In February 3 PA Bulletin

PA Environment Daily

. -- The Department of Environmental Protection published notice in the February 3 PA Bulletin inviting comments on proposed State Air Pollution Implementation Plan Regional Haze Best Available Retrofit Technology and setting three public hearings March 7 in Norristown, March 7 in Harrisburg, March 7 in Pittsburgh DEP Regional Offices.