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Amendments to General Provisions - Exemption from Emission Standards During Periods of Startup, Shutdown, and Malfunction (SSM)

On January 5, 2021, the U.S. Environmental Protection Agency (EPA) issued a ministerial final rule to amend General Provisions (40 CFR part 63, subpart A) of the Clean Air Act (CAA) section 112 National Emission Standards for Hazardous Air Pollutants (NESHAP). This action will specifically amend General Provisions language that exempted facilities, unless otherwise regulated, from compliance with emission standards during periods of startup, shutdown, and malfunction (SSM).
A pre-publication version of the rule and a summary fact sheet are available below.
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