{"abstract":"After consideration of public comments, the EPA is revoking a May 22, 2020 finding that it is not appropriate and necessary to regulate coal- and oil-fired electric utility steam generating units (EGUs) under Clean Air Act (CAA) section 112, and concluding, as it did in its April 25, 2016 finding, that it remains appropriate and necessary to regulate hazardous air pollutant (HAP) emissions from EGUs after considering cost.","action":"Final action.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2023/03/06/2023-03574.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"63","title":40}],"citation":"88 FR 13956","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final agency action is effective March 6, 2023.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2018-0794","FRL-6716.2-02-OAR"],"dockets":[{"supporting_documents":[{"title":"Measuring the Impacts of Teachers II: Teacher Value-Added and Student Outcomes in Adulthood.","document_id":"EPA-HQ-OAR-2018-0794-6941"},{"title":"Emergent Risks and Key Vulnerabilities In Climate Change 2014: Impacts, Adaptation, and Vulnerability. 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