What: On June 17, 2025, the U.S. Environmental Protection Agency (EPA) announced it will repeal specific amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coal- and Oil-Fired Electric Utility Steam Generating Units (EGUs).
Why: The EPA is proposing to repeal the following regulations:
- The filterable particulate matter (fPM) emission standard for existing coal-fired EGUs, which the EPA revised from 0.030 pounds per million British thermal units (lb/MMBtu) to 0.010 lb/MMBtu.
- The compliance demonstration requirement for the fPM emission standard for all coal- and oil-fired EGUs, which the EPA revised from allowing EGU owners and operators to choose between use of quarterly stack testing, use of continuous parametric monitoring systems (CPMS), or use of PM continuous emission monitoring systems (CEMS) to only allowing use of PM CEMS.
- The mercury emission standard for existing lignite-fired EGUs, which the EPA revised from 4.0 pounds per trillion British thermal units (lb/TBtu) to 1.2 lb/TBtu.
These actions are part of EPA’s previously announced efforts to Power the Great American Comeback.
Action: EPA will be holding a virtual public hearing on July 10, 2025. If you wish to speak at the public hearing, registration must be received by June 29, 2025.
Register for the virtual public hearing by using the link below, calling (888) 372-8699 or send an email to SPPDpublichearing@epa.gov. Comments are due August 11, 2025.
FEDERAL REGISTER NOTICE:
ADDITIONAL RESOURCES:
Mercury and Air Toxics Standards
VIRTUAL PUBLIC HEARING:
CONTACT: Nick Goldstein
EMAIL: nick.goldstein@sba.gov
Regulatory Alerts
TAG(S):
EPA
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