{"source":"reg-epa-air","note":"Free 5-item preview. The full feed is $0.05/call at GET /v1/reg-epa-air/changes.","question":"Which final or proposed federal rules affecting air quality & emissions (air quality, emission, clean air, ozone, particulate) were published since T, and which carry compliance obligations?","sample":[{"source":"reg-epa-air","entityId":"fedreg:2026-13403","type":"proposed_rule","title":"Air Plan Approval; Alabama; Transportation Conformity","summary":"The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM) on April 7, 2026. The SIP revision replaces the previously approved transportation conformity memorandum of agreement (MOA) with an updated MOA concerning transportation conformity criteria and procedures related to interagency consultation, conflict resolution, public participation, and enforceability of certain transportation-related control and mitigation measures. The SIP revision a…","significance":6,"detectedAt":"2026-07-16T20:32:53.409Z","effectiveDate":null,"sourceUrl":"https://www.federalregister.gov/documents/2026/07/02/2026-13403/air-plan-approval-alabama-transportation-conformity","detail":{"documentNumber":"2026-13403","documentType":"Proposed Rule","agencies":"Environmental Protection Agency","publicationDate":"2026-07-02","vertical":"reg-epa-air"}},{"source":"reg-epa-air","entityId":"fedreg:2026-14317","type":"final_rule","title":"Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits","summary":"The Environmental Protection Agency (EPA) is finalizing an approval of seven permitting rules as a revision to the Antelope Valley Air Quality Management District (AVAQMD or \"District\") portion of the California State Implementation Plan (SIP). These revisions concern the District's New Source Review (NSR) permitting program for new and modified sources of air pollution under part D of title I of the Clean Air Act (CAA or \"Act\"). The revised rules address deficiencies identified in a previous limited disapproval action, correct a newly identified deficiency for one permitting rule, and incorp…","significance":8,"detectedAt":"2026-07-16T12:36:33.989Z","effectiveDate":"2026-08-17","sourceUrl":"https://www.federalregister.gov/documents/2026/07/16/2026-14317/air-plan-revisions-california-antelope-valley-air-quality-management-district-new-source-review","detail":{"documentNumber":"2026-14317","documentType":"Rule","agencies":"Environmental Protection Agency","publicationDate":"2026-07-16","vertical":"reg-epa-air"}},{"source":"reg-epa-air","entityId":"fedreg:2026-14318","type":"final_rule","title":"Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard","summary":"The U.S. Environmental Protection Agency (EPA or Agency) is approving the attainment plan and comprehensive emissions inventory for the Canton Nonattainment Area for the 2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS) submitted by the Ohio Environmental Protection Agency (Ohio EPA or Ohio) on September 19, 2024. Additionally, the EPA is determining that the Canton Nonattainment Area has attained the 2008 Pb NAAQS and is approving Ohio's April 25, 2025, maintenance plan for continued attainment. With these approvals, the EPA is acting in accordance with Ohio's request to redesign…","significance":6,"detectedAt":"2026-07-16T12:36:33.989Z","effectiveDate":"2026-07-16","sourceUrl":"https://www.federalregister.gov/documents/2026/07/16/2026-14318/air-plan-approval-and-air-quality-designation-ohio-attainment-plan-and-redesignation-of-the-canton","detail":{"documentNumber":"2026-14318","documentType":"Rule","agencies":"Environmental Protection Agency","publicationDate":"2026-07-16","vertical":"reg-epa-air"}},{"source":"reg-epa-air","entityId":"fedreg:2026-14322","type":"final_rule","title":"Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations","summary":"The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Iowa State Implementation Plan (SIP) and the Operating Permit Program to incorporate recent changes to the Iowa Administrative Code (IAC). The revisions include removal of the Voluntary Operating Permit (VOP) Program language; removal of the Emission Reduction Program language; new and renumbered rules; replacement of duplicative language with references to state statute and federal regulations; updated definitions; consolidation of 14 chapters into 8 chapters; and minor clarifications to language and…","significance":8,"detectedAt":"2026-07-16T12:36:33.989Z","effectiveDate":"2026-08-17","sourceUrl":"https://www.federalregister.gov/documents/2026/07/16/2026-14322/air-plan-approval-iowa-revisions-to-iowa-air-quality-regulations","detail":{"documentNumber":"2026-14322","documentType":"Rule","agencies":"Environmental Protection Agency","publicationDate":"2026-07-16","vertical":"reg-epa-air"}},{"source":"reg-epa-air","entityId":"fedreg:2026-14325","type":"proposed_rule","title":"Air Plan Approval; Pennsylvania; Reasonably Available Control Technology (RACT) for Volatile Organic Compounds (VOC) Control Technique Guidelines (CTG) Under the 2008 and 2015 Ozone National Ambient …","summary":"The Environmental Protection Agency (EPA) is proposing to approve four state implementation plan (SIP) revisions submitted by the Commonwealth of Pennsylvania received on May 10, 2023, January 20, 2026, February 17, 2026, and April 10, 2026, through the Pennsylvania Department of Environmental Protection (PADEP). The SIP revisions address reasonably available control technology (RACT) requirements for the 2008 and 2015 ozone national ambient air quality standards (NAAQS) relating to control technique guidelines (CTGs) for volatile organic compounds (VOC) via previously adopted CTG regulations…","significance":6,"detectedAt":"2026-07-16T12:36:33.989Z","effectiveDate":null,"sourceUrl":"https://www.federalregister.gov/documents/2026/07/16/2026-14325/air-plan-approval-pennsylvania-reasonably-available-control-technology-ract-for-volatile-organic","detail":{"documentNumber":"2026-14325","documentType":"Proposed Rule","agencies":"Environmental Protection Agency","publicationDate":"2026-07-16","vertical":"reg-epa-air"}}]}