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EPA announced yesterday that it will "reconsider" the Trump EPA's decision not to change the PM2.5 National Ambient Air Quality Standard.

The U.S. Environmental Protection Agency's (EPA) Office of Inspector General (OIG) has issued a fraud alert stating that businesses have been receiving falsified Notice of Violation letters through the mail.

On May 9, 2018, EPA Administrator Scott Pruitt issued a memorandum outlining a "back-to-basics" process for reviewing NAAQS for criteria pollutants under the CAA.

Seyfarth Synopsis: The U.S. Environmental Protection Agency (EPA or Agency) has released a pre-publication copy of its proposed amendments...

Today, the U.S. Environmental Protection Agency (EPA) proposed a landmark rule that would establish the first national limits on greenhouse gas emissions from power plants.

Yesterday, EPA released proposed revisions to its rules governing emissions from emergency back-up generators.

EPA's update to the Cross State Air Pollution Rule is designed to address interstate transport issues under the 2008 ozone standard.

U.S. EPA’s long anticipated proposed rule for greenhouse gas (GHG) emissions from new power plants was published in the Federal Register on Jan. 8, 2014.

During the rulemaking process, the EPA had held over 50 webinars and meetings to discuss the proposed rule.

Yesterday, EPA finalized revisions to the National Emissions Standards for Hazardous Air Pollutants for stationary reciprocating internal combustion engines.

The rule was the signature policy piece of former President Obama's efforts to decrease the U.S.'s carbon emissions and promote the expansion of renewable energy.

Farmers, property developers, and oil and gas producers contend that the new rule will stifle economic growth and intrude on the rights of businesses and property owners.

The US Chamber of Commerce, along with other business groups, sued California in federal district court over two new climate disclosure laws, SB 253 and 261.

Earlier this month, the 5th Circuit Court of Appeals stayed EPA's disapproval of the Texas and Oklahoma regional haze state implementation plans, as well as EPA's promulgation of its own federal implementation plan.

With the recent finding that greenhouse gas emissions from certain aircraft engines endanger public health and welfare, the EPA must promulgate aircraft engine emission standards under CAA Section 231.

On November 15, 2023, the Attorney General of New York filed suit against PepsiCo, Inc., seeking to hold the soft drink and snack food manufacturer liable for plastic waste on the shores...

In what could portend significant risk to the regulated community, a recent "overfiling" by U.S. EPA in connection with a Clean Air Act