More Stringent Limits on Major NESHAP Sources Reclassifying to Area Sources

On September 22, 2023, the EPA proposed to strengthen a 2020 Clean Air Act (CAA) rule by ensuring industrial facilities that emit large amounts of hazardous air pollutants (HAPs) can’t increase emissions when reclassifying from a “major source” of emissions to an “area source.” The proposed amendments to the “Reclassification of Major Sources as Area […]

EPA Addresses Issues Associated with Additions to HAP List

On September 13, 2023, the EPA published a proposed rule in the Federal Register to amend the General Provisions for National Emissions Standards for Hazardous Air Pollutants (NESHAP) to address applicability and compliance issues resulting from the addition of a compound to the list of hazardous air pollutants (HAPs) under the Clean Air Act (CAA). […]

Boiler Chimney

Proposed NESHAP Amendments for Boilers and Process Heaters

On August 24, 2020, the EPA published proposed rules that, if enacted, will amend the National Emissions Standards for Hazardous Air Pollutants (NESHAP) for the control of hazardous air pollutants (HAPs) at major sources from new and existing industrial, commercial, and institutional (ICI) boilers and process heaters.

Air emissions, pollution

A Look at EPA’s Finalized Amendments for Organic Liquids Distribution Facilities

On March 12, 2020, the EPA finalized its rule amending the 2004 National Emissions Standards for Hazardous Air Pollutants for Organic Liquids Distribution (OLD NESHAP). Organic Liquids Distribution (OLD) air toxics standards regulate chemical and petrochemical facilities that manufacture, distribute, and store organic liquids, except gasoline and its derivatives. These standards limit the quantity of […]

Air pollution, pollutants, smokestacks

Technological Advancements Reflected in Site Remediation NESHAP Amendments

In 2003, under the Clean Air Act (CAA), the EPA established the National Emissions Standards for Hazardous Air Pollutants (NESHAP) for Site Remediation (40 CFR Part 63, Subpart GGGGG). In 2006, the rule was revised to address questions and clarifications, as well as technical errors in the original version. Many years later, in 2019, the […]

Paper Factory

Court Rules EPA Must Set New Limits for Omitted HAPs

The U.S. Court of Appeals for the District of Columbia decided in April 2020 that the EPA is required under the Clean Air Act (CAA) to set additional emissions limits on hazardous air pollutants (HAPs) from pulp mills covered by the National Emissions Standard for Hazardous Air Pollutants (NESHAP) for Chemical Recovery Combustion Sources at […]

Air emissions, pollution

The Clean Air Act: Delegating Authority

In writing the Clean Air Act (CAA), Congress was careful to ensure that the responsibility for improving and protecting the nation’s ambient air is shared by the federal government and state, local, and tribal governments. While the EPA is the federal entity that sets standards and bears the responsibility for implementing and enforcing the CAA, […]

Coal Plant

Small Coal Plants Benefit from MATS Amendment

It has been clear for some time that deregulatory actions at the federal level will slow but not stop the decline of coal as an energy source in the United States. Still, the EPA continues to do what it can to ensure that coal remains a key component of the nation’s energy portfolio.