{"abstract":"The Environmental Protection Agency (EPA) is finalizing revisions to requirements under the Clean Air Act (CAA) for state plans for protection of visibility in mandatory Class I Federal areas in order to continue steady environmental progress while addressing administrative aspects of the program. In summary, the revisions clarify the relationship between long-term strategies and reasonable progress goals (RPGs) in state implementation plans (SIPs) and the long-term strategy obligation of all states; clarify and modify the requirements for periodic comprehensive revisions of SIPs; modify the set of days used to track progress towards natural visibility conditions to account for events such as wildfires; provide states with additional flexibility to address impacts on visibility from anthropogenic sources outside the United States (U.S.) and from certain types of prescribed fires; modify certain requirements related to the timing and form of progress reports; and update, simplify and extend to all states the provisions for reasonably attributable visibility impairment, while revoking most existing reasonably attributable visibility impairment federal implementation plans (FIPs). The EPA also is making a one-time adjustment to the due date for the next periodic comprehensive SIP revisions by extending the existing deadline of July 31, 2018, to July 31, 2021.","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/2017/01/10/2017-00268.html","cfr_references":[{"chapter":null,"citation_url":null,"part":51,"title":40},{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"82 FR 3078","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on January 10, 2017.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2015-0531","FRL-9957-05-OAR"],"dockets":[],"document_number":"2017-00268","effective_on":"2017-01-10","end_page":3129,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2017/01/10/2017-00268.xml","html_url":"https://www.federalregister.gov/documents/2017/01/10/2017-00268/protection-of-visibility-amendments-to-requirements-for-state-plans","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2017-00268?publication_date=2017-01-10","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2017-01-10/2017-00268/mods.xml","not_received_for_publication":null,"page_length":52,"page_views":{"count":2846,"last_updated":"2026-10-22 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2017-01-10/pdf/2017-00268.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2017-00268.pdf?1483969570","publication_date":"2017-01-10","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2017/01/10/2017-00268.txt","regulation_id_number_info":{"2060-AS55":{"issue":"201610","html_url":"https://www.federalregister.gov/regulations/2060-AS55/protection-of-visibility-amendments-to-requirements-for-state-plans","title":"Protection of Visibility: Amendments to Requirements for State Plans","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201610&RIN=2060-AS55&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2060-AS55"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Part of E.O. 12866 Review - Conclusion of EO 12866 and 13563 Review EPA Final Rule --Protection of Visibility - Amendments to Requirements for State Plans (RIN 2060-AS55)","document_id":"EPA-HQ-OAR-2015-0531-0620"},{"title":"Documentation of Changes Made During OMB Review Under E.O. 12866 - Regional Haze FRM FRN","document_id":"EPA-HQ-OAR-2015-0531-0619"},{"title":"Document submitted to conclude E.O. 12866 review - Regional Haze FRM FRN","document_id":"EPA-HQ-OAR-2015-0531-0618"},{"title":"Docket memo re: EPA Discussion with NPCA and other organizations - Proposed Amendments to Regional Haze Rule (June 22, 2016)","document_id":"EPA-HQ-OAR-2015-0531-0569"},{"title":"Transcript of Public Hearing held May 19, 2016 (Washington, DC)","document_id":"EPA-HQ-OAR-2015-0531-0209"},{"title":"Letter from Stephen D. Page, Director, EPA Office of Air Quality Planning and Standards, to Mr. Norman W. Fichthorn, Hunton & Williams LLP, in response to request on behalf of Utility Air Regulatory Group (UARG) to extend the public comment period (June 7, 2016)","document_id":"EPA-HQ-OAR-2015-0531-0118"},{"title":"Slides for EPA Discussion with NACAA Members - Proposed Amendments to Regional Haze Rule (May 31, 2016)","document_id":"EPA-HQ-OAR-2015-0531-0117"},{"title":"Public Webinar Slides - Proposed Amendments to Regional Haze Rule (May 4, 2016)","document_id":"EPA-HQ-OAR-2015-0531-0116"},{"title":"Summary of Interagency Comments under EO12866 E013563 Regional Haze 2060-AS55 NPRM 2016 03 15 (3)","document_id":"EPA-HQ-OAR-2015-0531-0050"},{"title":"EPA Response to Summary of Interagency Comments under EO12866 E013563 Regional Haze 2060-AS55 NPRM 2016 03 15 (2)","document_id":"EPA-HQ-OAR-2015-0531-0049"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2060-AS55/protection-of-visibility-amendments-to-requirements-for-state-plans","title":"Protection of Visibility: Amendments to Requirements for State Plans"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2015-0531","supporting_documents_count":89,"docket_id":"EPA-HQ-OAR-2015-0531","regulation_id_number":"2060-AS55","title":"Protection of Visibility: Amendments to Requirements for State Plans","checked_regulationsdotgov_at":"2017-01-30T06:00:19Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":3078,"subtype":null,"title":"Protection of Visibility: Amendments to Requirements for State Plans","toc_doc":"Requirements for State Plans","toc_subject":"Protection of Visibility:","topics":["Administrative practice and procedure","Air pollution control","Environmental protection","Incorporation by reference","Nitrogen dioxide","Particulate matter","Sulfur oxides","Transportation","Volatile organic compounds"],"type":"Rule","volume":82}