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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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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.

Ozone 40
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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.

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DEP Posted 56 Pages Of Permit-Related Notices In February 24 PA Bulletin

PA Environment Daily

Read more here. -- The Department of Environmental Protection published notice in the February 24 PA Bulletin the final technical guidance on using trenchless technology to construct natural gas, other pipelines and underground utilities is now available and effective. Notice of new technical guidance documents and regulations?

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Changes to California’s Electric Truck Proposal Could Reap Huge Climate and Air Quality Gains

Union of Concerned Scientists

This new regulation would apply to delivery vans, big rigs, box trucks, and buses. Regulate more tractor trucks, including the smaller fleets. and NOx emissions reductions from tractor trucks while still only regulating around 13 percent of California tractor fleets.

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EPA Proposes Rejection of San Joaquin Valley Air District PM2.5 SIP Submittal

Legal Planet

As we explained in our brief, under the federal Clean Air Act, states are required to submit SIPs detailing strategies to come into attainment with federal air quality standards for pollutants like ozone and PM2.5. Local air districts can and should use their power to push for zero-emission appliances. Download as PDF.