{"abstract":"The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the State of Utah. The revision fulfills the base year inventory requirement for the 2015 8-hour ozone national ambient air quality standard (NAAQS) for the Uinta Basin, Northern Wasatch Front, and Southern Wasatch Front nonattainment areas. Utah submitted the base year emissions inventories to meet, in part, the nonattainment requirements for Marginal ozone nonattainment areas under the 2015 8- hour ozone NAAQS. EPA is taking this action pursuant to sections 110, 172, and 182 of the Clean Air Act (CAA).","action":"Proposed 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/2021/04/01/2021-06754.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"86 FR 17106","comment_url":null,"comments_close_on":"2021-05-03","correction_of":null,"corrections":[],"dates":"Written comments must be received on or before May 3, 2021.","disposition_notes":null,"docket_ids":["EPA-R08-OAR-2020-0646","FRL-10021-65-Region 8"],"dockets":[{"supporting_documents":[{"title":"Inventory data files were provided for the source sectors in the Uinta Basin, Northern Wasatch Front and Southern Wasatch Front nonattainment areas. These files may be available upon request by contacting lang.matthew@epa.gov.","document_id":"EPA-R08-OAR-2020-0646-0007"},{"title":"UDAQ Technical Support Documents - Uinta Basin","document_id":"EPA-R08-OAR-2020-0646-0006"},{"title":"UDAQ Technical Support Documents - Southern Wasatch Front","document_id":"EPA-R08-OAR-2020-0646-0005"},{"title":"UDAQ Technical Support Documents - Northern Wasatch Front","document_id":"EPA-R08-OAR-2020-0646-0004"},{"title":"1-28-2021 Superseding Supplement","document_id":"EPA-R08-OAR-2020-0646-0003"},{"title":"7-30-2020 Full Submittal to EPA","document_id":"EPA-R08-OAR-2020-0646-0002"}],"agency_name":"EPA","documents":[{"comment_count":1,"comment_start_date":"2021-04-01","updated_at":"2023-02-28T22:32:44.902-05:00","comment_url":"https://www.regulations.gov/commenton/EPA-R08-OAR-2020-0646-0001","allow_late_comments":null,"id":"EPA-R08-OAR-2020-0646-0001","comment_end_date":"2021-05-04","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":6,"id":"EPA-R08-OAR-2020-0646","title":"UT Ozone Marginal Nonattainment Area 2017 Base Year Inventories"}],"document_number":"2021-06754","effective_on":null,"end_page":17109,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2021/04/01/2021-06754.xml","html_url":"https://www.federalregister.gov/documents/2021/04/01/2021-06754/approval-and-promulgation-of-implementation-plans-utah-2017-base-year-inventories-for-the-2015","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2021-06754?publication_date=2021-04-01","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2021-04-01/2021-06754/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":215,"last_updated":"2026-04-04 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2021-04-01/pdf/2021-06754.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2021-06754.pdf?1617194741","publication_date":"2021-04-01","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2021/04/01/2021-06754.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Inventory data files were provided for the source sectors in the Uinta Basin, Northern Wasatch Front and Southern Wasatch Front nonattainment areas. These files may be available upon request by contacting lang.matthew@epa.gov.","document_id":"EPA-R08-OAR-2020-0646-0007"},{"title":"UDAQ Technical Support Documents - Uinta Basin","document_id":"EPA-R08-OAR-2020-0646-0006"},{"title":"UDAQ Technical Support Documents - Southern Wasatch Front","document_id":"EPA-R08-OAR-2020-0646-0005"},{"title":"UDAQ Technical Support Documents - Northern Wasatch Front","document_id":"EPA-R08-OAR-2020-0646-0004"},{"title":"1-28-2021 Superseding Supplement","document_id":"EPA-R08-OAR-2020-0646-0003"},{"title":"7-30-2020 Full Submittal to EPA","document_id":"EPA-R08-OAR-2020-0646-0002"}],"comments_count":1,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-R08-OAR-2020-0646","supporting_documents_count":6,"docket_id":"EPA-R08-OAR-2020-0646","document_id":"EPA-R08-OAR-2020-0646-0001","regulation_id_number":null,"title":"UT Ozone Marginal Nonattainment Area 2017 Base Year Inventories","checked_regulationsdotgov_at":"2023-03-01T03:32:43Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":17106,"subtype":null,"title":"Approval and Promulgation of Implementation Plans; Utah; 2017 Base Year Inventories for the 2015 8-Hour Ozone National Ambient Air Quality Standard for the Uinta Basin, Northern Wasatch Front and Southern Wasatch Front Nonattainment Areas","toc_doc":"Utah; 2017 Base Year Inventories for the 2015 8-Hour Ozone National Ambient Air Quality Standard for the Uinta Basin, Northern Wasatch Front and Southern Wasatch Front Nonattainment Areas","toc_subject":"Air Quality State Implementation Plans; Approvals and Promulgations:\n","topics":["Air pollution control","Carbon monoxide","Environmental protection","Greenhouse gases","Incorporation by reference","Intergovernmental relations","Lead","Nitrogen dioxide","Ozone","Particulate matter","Reporting and recordkeeping requirements","Sulfur oxides","Volatile organic compounds"],"type":"Proposed Rule","volume":86}