{"abstract":"This action corrects and updates regulations for source testing of emissions. These revisions include corrections to inaccurate testing provisions, updates to outdated procedures, and approved alternative procedures that will provide flexibility to testers. These revisions will improve the quality of data and will not impose any new substantive requirements on source owners or operators.","action":"Final rule.","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/2020/10/07/2020-18824.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"51","title":40},{"chapter":null,"citation_url":null,"part":"60","title":40},{"chapter":null,"citation_url":null,"part":"61","title":40},{"chapter":null,"citation_url":null,"part":"63","title":40}],"citation":"85 FR 63394","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":["https://www.federalregister.gov/api/v1/documents/C1-2020-18824"],"dates":"The final rule is effective on December 7, 2020. The incorporation by reference of certain materials listed in the rule is approved by the Director of the Federal Register as of December 7, 2020]. The incorporation by reference of certain other materials listed in the rule was approved by the Director of the Federal Register as of July 6, 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