Union of Concerned Scientists

JANUARY 21, 2025

California is allowed to set standards stronger than the federal government under the 1970 Clean Air Act provisions in recognition that CA, and many other states which have adopted CA standards , serve an important role as laboratories of innovation controlling air pollution in novel ways. In the U.S.,

Nitrogen Oxides

National Law Center

JUNE 10, 2025

6:24-cv-2026 (N.D. However, NRCS will only recertify a designated wetland if “the final certification is no longer a reliable indication of site conditions[.]” The complaint in CTM Holdings, LLC v. Dep’t of Agriculture , No. Iowa, May 29, 2025) was initially filed by a landowner in Iowa on April 16, 2024.

2013

Union of Concerned Scientists

MAY 12, 2025

This long struggle to get cleaner air in California is one of necessity; pollution from Californias millions of cars and trucks, combined with its unique climate and geography have led to the state having consistently the worst air pollution in the nation.

Air Pollution

Legal Planet

JULY 29, 2025

Trump and Zeldin should be careful what they wish for: if the Clean Air Act can’t be used to regulate greenhouse gases, then states may be free to do so on their own without any risk of preemption,” Carlson says. Severe conditions have raised concerns ahead of the 2026 World Cup hosted in the U.S., Canada, and Mexico.

Fossil Fuels

PA Environment Daily

APRIL 14, 2025

Data Center, The Countrys Largest Natural Gas Power Plant [ PDF of Article ] -- TECfusions Unveils Massive 1,400-Acre Data Center Project With 3 Gigawatts Of Natural Gas-Fired Power Generation In Westmoreland County [PaEN] -- DEP Issues Air Quality Permit For Nova Energy LLC Cryptocurrency Data Center In Venango County [PaEN] -- DEP Invites Comments (..)

Electricity

PA Environment Daily

JULY 30, 2025

Distribution Costs Up "I just want to convey to everyone that, while we're talking about that little slice, which is capacity, in 2024, all of the electric utilities with the exception of PPL we're in for distribution rate increases, we expect that all of them will also be in again in 2026. “We And so all of these costs are going up.

Electricity

PA Environment Daily

APRIL 10, 2025

PJM will process the remaining 67 GW of projects (out of approximately 200 GW) in the transition phase this year and next, and initiate its new Cycle process in early 2026. PJM also recently announced the Reliability Resource Initiative , which will allow expedited entry of selected projects in the transition phase.

Clean Air Act

Union of Concerned Scientists

MAY 14, 2025

In addition to all the harms that have already happened, now President Trumps skinny budget for fiscal year 2026 proposes cutting EPA funding by a massive 54.5%, or $4.2 Are you planning on taking EPAs Office of Air and Radiation back to the 1970s? These waivers ensure that certain favored companies can operate outside the law.

Clean Air Act

Law Columbia

APRIL 29, 2025

The lawsuit, brought by railroad industry groups, had been held in abeyance since September 30, 2024, awaiting a determination by EPA on which portions of the regulation would require EPA authorization under the Clean Air Act and whether to grant such authorization.

Climate Change

Legal Planet

NOVEMBER 14, 2024

Ironically, sudden substantive changes in administrative policy – such as slashing emissions rules mandated by the Clean Air Act or other environmental regulations – by a new Trump administration could run counter to the narrow latitude given to federal agencies by the U.S.

2025

PA Environment Daily

MARCH 30, 2025

Data Centers Impacts On Electricity Grid -- PJM Interconnection Reliability Initiative Attracts 94 Applications For 26.6

Conservation

PA Environment Daily

APRIL 24, 2025

Data Center, The Countrys Largest Natural Gas Power Plant [ PDF of Article ] -- TECfusions Unveils Massive 1,400-Acre Data Center Project With 3 Gigawatts Of Natural Gas-Fired Power Generation In Westmoreland County [PaEN] -- DEP Issues Air Quality Permit For Nova Energy LLC Cryptocurrency Data Center In Venango County [PaEN] -- DEP Invites Comments (..)

Carbon Emissions

PA Environment Daily

APRIL 13, 2025

Meuser Bring Potential Gubernatorial Pitches To Conservative Conference In Harrisburg -- WESA/WVIA: Advocates, Environmentalists Split As President Signs Orders To Bolster Coal Industry -- Inquirer: State Treasurer Garrity Seriously Eyeing Run For Governor As Republican Race For 2026 Heats Up -- LancasterOnline: State Sen. Ohio- $3.02

Politics

Legal Planet

APRIL 10, 2025

And about the EPA having that email address set up for copy and paste exemptions to the Clean Air Act, which my colleague Mary D. Here we are, weeks in, and youre still unable to proffer me any information with regard to any kind of investigation or malfeasance, said Judge Tanya Chutkan of the U.S.

Nitrogen Oxides

Legal Planet

APRIL 23, 2025

About 90 percent of the sampled cleaned surfaces showed Pb levels below the EPA limit, indicating that cleaning is often, but not always, effective at removing heavy metals from surfaces. The arguments in Diamond Alternative Energy v. EPA wont center on the waiver itself, which oil and biofuel interests had sued over.

Earth Day

PA Environment Daily

APRIL 13, 2025

6:00 to 7:30 p.m.

Conservation

National Law Center

JULY 21, 2025

For fiscal year 2028, a state can choose to use its payment error rate from 2025 or 2026; however, for fiscal year 2029 and beyond, the payment error rate for the third fiscal year preceding the fiscal year being calculated will be used. For example, in fiscal year 2029, the payment error rate of 2026 will be used.

2013

Union of Concerned Scientists

APRIL 3, 2025

Moreover, the Trump administration is resetting , or changing all of the membership of, both the Environmental Protection Agency (EPA) Science Advisory Board and the Clean Air Act Science Advisory Committee. FACs also have workgroups assigned to them to focus on specific topics relevant to the committee.

Government

PA Environment Daily

APRIL 15, 2025

Data Center, The Countrys Largest Natural Gas Power Plant [ PDF of Article ] -- TECfusions Unveils Massive 1,400-Acre Data Center Project With 3 Gigawatts Of Natural Gas-Fired Power Generation In Westmoreland County [PaEN] -- DEP Issues Air Quality Permit For Nova Energy LLC Cryptocurrency Data Center In Venango County [PaEN] -- DEP Invites Comments (..)

Electricity

PA Environment Daily

JUNE 11, 2025

Environmental Protection Agency Administrator Lee Zeldin announced the agency will repeal all greenhouse gas emissions standards for the power sector under Section 111 of the Clean Air Act and repeal 2024 amendments to the 2024 Mercury and Air Toxics Standards (MATS) that directly result in coal-fired power plants having to shut down.

Fossil Fuels

PA Environment Daily

MARCH 12, 2025

Methane Emissions EPA announced it would reconsider regulations for the oil and gas industry under Section 111 of the Clean Air Act and Subpart W of the Greenhouse Gas Reporting Program. EPA also announced it would reconsider risk management rules that cover oil and natural gas refineries and chemical facilities.

Regulations

PA Environment Daily

JULY 17, 2025

In addition, much of current Clean Air Act (CAA) requirements for building data centers dates back to the 1990s, when technology was practically prehistoric compared to modern advancements. Of Energy Releases Report On Electric Grid Reliability, Security Saying Generation Growth Must Match Needs Of A.I.

Natural Gas

Legal Planet

SEPTEMBER 6, 2022

Under the Clean Air Act, California has the unique ability to set its own standards for tailpipe emissions from new vehicles, including greenhouse gases. There are some aggressive milestone requirements: 35% of new vehicles must be electric by 2026 and 68% in 2030. Other states can then piggyback on California’s efforts.

Carbon Emissions

PA Environment Daily

MARCH 28, 2025

McCormick Defended DOGE, President And Called Signal Chat A Mistake In First Tele-Town Hall -- WESA: Collaboration Or Combat?

Nuclear Power

Acoel

JUNE 29, 2022

This level of forced retirements is far in excess of any prior EPA projections of plant shutdowns resulting from implementation of a Clean Air Act rulemaking. For example, EPA projected a total of just 4,700 MW of coal capacity retirements under the 2012 Mercury and Air Toxics Standards rule.

Ozone

Acoel

OCTOBER 17, 2024

the Court declined a request to stay the methane rule , which is aimed at reducing methane emissions from oil and gas operations under the Clean Air Act (the “CAA”). First, in Oklahoma, et al. EPA, et al. , In addition to methane emissions, this rule also focuses on other volatile organic compounds. EPA, et al.

Clean Air Act

Law Columbia

MARCH 29, 2024

Current estimates are that the law will impact over 10,000 companies, which will have to draft a report every two years, beginning January 1, 2026, and publish it on their own website. This bill captures more companies, with a lower revenue threshold of over $500 million instead of $1 billion.

Law

Law Columbia

AUGUST 3, 2018

To support that view, the agencies rely on data published by the Energy Information Administration in 2017, which indicates that prices are likely to rise by just 16 percent through 2026. Given this, EPA and DOT’s claim that prices will “remain low,” and not “rise significantly” appears flawed.

Carbon Dioxide

Law Columbia

AUGUST 22, 2022

Clean Air Act appropriating $2.25 An additional appropriation of $750 million is made for the same set of activities in ports located in nonattainment areas, as designated under Section 107 of the Clean Air Act. States, Indian tribes, and air pollution control agencies are also eligible for funding.

Clean Air Act

Union of Concerned Scientists

MARCH 12, 2024

In 1966, vehicles were responsible for nearly 60 percent of the 146 million tons of pollutants discharged into the air across the United States. Many transportation professionals now acknowledge this sorry legacy and want to do something about it.

Nitrogen Oxides

Legal Planet

APRIL 24, 2023

When the Biden Administration ramped up fuel efficiency requirements through 2026, ideologues such as the Heartland Institute and states like Texas were quick to wheel out this attack. No doubt the same attack will be made on the Administration ambitious proposed post-2026 standard. But the resemblance ends there.

Clean Air Act

ESA

DECEMBER 20, 2021

After the release of the Arctic Report Card, the White House Office of Science and Technology Policy published the Arctic Research Plan for 2022-2026. EPA – Proposed Consent Decree, Clean Air Act Citizen Suit. EPA – Pesticide Registration Review; Proposed Interim Decisions for Several Pesticides; Notice of Availability.

2021

Legal Planet

MARCH 9, 2023

In rejecting EPA’s plan to regulate greenhouse gas emissions from existing power plants under Section 111(d) of the Clean Air Act, the Court stated that “agency decisions of vast economic and political significance” (i.e., those that pose “major questions”) must be made “pursuant to a clear delegation” from Congress.

Clean Air Act

Legal Planet

OCTOBER 5, 2023

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. I’m an appellate litigator with a focus on climate and Clean Air Act cases. Q: Hi, Sean. For about 15 years I’ve been practicing in a very small firm.

Clean Air Act

Union of Concerned Scientists

FEBRUARY 28, 2025

Californias Advanced Clean Car II (ACCII) regulations are set to go into effect starting with model year 2026 vehicles. The automakers true ZEV sales requirement for model year 2026 is between 9 and 30% of their sales, and some of that requirement can be satisfied with plug-in hybrids that have gasoline engines.

2026

Legal Planet

AUGUST 4, 2021

As E&E News reported today, the Biden administration is expected to announce tomorrow new fuel economy and tailpipe emissions standards for light-duty vehicles model years (MY) 2023 through 2026. A total of ten lawsuits ended up as a consolidated action in the D.C. .

2026

Law Columbia

MARCH 13, 2023

EPA , the United States Environmental Protection Agency (EPA) has regulated greenhouse gas (GHG) emissions from motor vehicles under the Clean Air Act. While the Clean Air Act (CAA) has been amended multiple times since 1970, this basic requirement has remained untouched.

Clean Air Act