In a Final Rule posted to the Federal Register on April 6, 2017
and effective immediately, US EPA amended the electronic reporting requirements under its Mercury and Air Toxics Standards (MATS) program.The updated electronic reporting requirements will
allow for temporary submission of certain reports in PDF format until June 30, 2018 and allow power plant owners/operators to correct inadvertent errors.
This will “allow the EPA the necessary time to develop, implement, and test” MATS reporting functions in the Emissions Collection and Monitoring Plan System (ECMPS) online tool.
What Is the Mercury and Air Toxics Standards (MATS) Rule?
Initially published in February 2012, the “MATS Rule” added coal- and oil-fired electricity generating units (EGUs), i.e., power plants, to the list of “major sources of air pollution” and introduced Nation Emissions Standards for Hazardous Air Pollutants (NESHAPs) for these facilities.
States challenged the Final Rule in court, and in the case Michigan v. EPA, the court decided
that “EPA strayed well beyond the bounds of reasonable interpretation in concluding that cost is not a factor relevant to the appropriateness of regulated power plants.”
After losing the court battle, US EPA published a supplemental finding in the Federal Register in December 2015
defending its Final Rule and the Agency’s authority to regulate air emissions from power plants regardless of the cost implications to industry.
Then, in March 2016, the Supreme Court ruled in favor of US EPA
and declined to block implementation of the Final Rule.
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