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Regulatory documents from Regulations.gov including rules, proposed rules, notices, and supporting materials.

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32 rows where docket_id = "EPA-HQ-OAR-2018-0794" and posted_year = 2026 sorted by posted_date descending

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  • Supporting & Related Material 31
  • Rule 1

posted_year 1

  • 2026 · 32 ✖

agency_id 1

  • EPA 32
id agency_id docket_id title document_type subtype posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id
EPA-HQ-OAR-2018-0794-8469 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the American Lung Association's Request for an Extension of the Comment Period for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:07Z   0 0 09000064b8ef5e41
EPA-HQ-OAR-2018-0794-8495 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Summary of Public Comments and Responses on Proposed Rule Supporting & Related Material Comment Response 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:12Z   0 0 09000064b91c2f25
EPA-HQ-OAR-2018-0794-8465 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal Rule Final Rule 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:41:05Z 2026-03638 0 0 09000064b91d571d
EPA-HQ-OAR-2018-0794-8477 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Presidential Proclamation 10956: Regulatory Relief for Certain Stationary Sources To Further Promote American Energy Supporting & Related Material Publication - Previous/Related FR Notice 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:09Z   0 0 09000064b919b552
EPA-HQ-OAR-2018-0794-8493 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 OMB Correspondence Supporting & Related Material Office of Management and Budget (OMB) 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:12Z   0 0 09000064b91c25ef
EPA-HQ-OAR-2018-0794-8494 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Regulatory Impact Analysis for the Final Repeal of Amendments to National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units Supporting & Related Material Publication - USEPA 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:12Z   0 0 09000064b91c2643
EPA-HQ-OAR-2018-0794-8480 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 2025 Update to the 2024 Technology Review for the Coal- and Oil-Fired EGU Source Category (2025 Technical Memo) Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:09Z   0 0 09000064b91a7674
EPA-HQ-OAR-2018-0794-8479 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Rule Text Changes in Redline-Strikeout (RLSO) for the Final Repeal of Amendments to the NESHAP Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:09Z   0 0 09000064b91a7616
EPA-HQ-OAR-2018-0794-8476 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 August 28, 2025, Virtual Meeting with the Edison Electric Institute (EEI) Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:09Z   0 0 09000064b9115efe
EPA-HQ-OAR-2018-0794-8491 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 RIA - 2026 Final - Read Me for Translation Code for SAGE and Real Resource Cost Estimates Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91aa29d
EPA-HQ-OAR-2018-0794-8485 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 NEEDS for 2025 Reference Case Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:10Z   0 0 09000064b91a8f97
EPA-HQ-OAR-2018-0794-8474 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the Prairie Hills Audubon Society's Request for an Extension of the Comment Period and Additional Public Hearings for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8f04eea
EPA-HQ-OAR-2018-0794-8487 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 MATS Repeal RIA - Compliance Costs Emissions and Energy Impacts Final - 2025 Reference Case Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91a88db
EPA-HQ-OAR-2018-0794-8473 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the Physicians for Social Responsibility's Request for an Extension of the Comment Period and Additional Public Hearings for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8ef5e89
EPA-HQ-OAR-2018-0794-8478 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 ICR Supporting Statement (Final Rule) Supporting & Related Material ICR Supporting Statement 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:09Z   0 0 09000064b919e47b
EPA-HQ-OAR-2018-0794-8489 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 AQ SABAQS EPA-HQ-OAR-2018-0794 readme Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91a9557
EPA-HQ-OAR-2018-0794-8486 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 MATS Repeal RIA - Compliance Costs Emissions and Energy Impacts Final - IPM Documentation Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91a8fa5
EPA-HQ-OAR-2018-0794-8488 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 MATS Repeal RIA - Compliance Costs Emissions and Energy Impacts Final - 2025 Reference Case with 2024 MATS RTR Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91a88e0
EPA-HQ-OAR-2018-0794-8490 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 RIA - 2026 Final - Real Resource Cost Table 2-7 Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:11Z   0 0 09000064b91ac593
EPA-HQ-OAR-2018-0794-8484 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 2022v1 AQ Modeling Data Drive Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:10Z   0 0 09000064b91a8f91
EPA-HQ-OAR-2018-0794-8481 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 MATS Repeal Final RIA Small Entity Analysis Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:10Z   0 0 09000064b91a852a
EPA-HQ-OAR-2018-0794-8496 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Impact of the MATS RTR Repeal on Local Economies Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:12Z   0 0 09000064b91cb885
EPA-HQ-OAR-2018-0794-8471 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the Children's Environmental Health Network's Request foran Extension of the Comment Period for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8ef5e44
EPA-HQ-OAR-2018-0794-8472 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the Environmental Defense Fund's Request for an Extension of the Comment Period and Additional Public Hearings for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8ef5e88
EPA-HQ-OAR-2018-0794-8483 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 MATS RTR Repeal Final RIA Analysis Workbook Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:10Z   0 0 09000064b91a855f
EPA-HQ-OAR-2018-0794-8492 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 RIA - 2026 Final - Read Me for SAGE Analysis Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:12Z   0 0 09000064b91aba67
EPA-HQ-OAR-2018-0794-8482 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Supplemental Modeling Documentation Supporting & Related Material Data 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:10Z   0 0 09000064b91a853b
EPA-HQ-OAR-2018-0794-8466 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Public Hearing Transcript: Proposed Repeal of the 2024 MATS Amendments, July 10, 2025 Supporting & Related Material Public Hearing Transcript, Deposition, Testimony 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:07Z   0 0 09000064b8ef5e2e
EPA-HQ-OAR-2018-0794-8470 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 EPA Letter in Response to the Climate Action Campaign et al. Request for an Extension of the Comment Period for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8ef5e43
EPA-HQ-OAR-2018-0794-8475 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Congressional Letter to Administrator Lee Zeldin Requesting an Extension of the Comment Period and Additional Public Hearings for the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Letter 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:08Z   0 0 09000064b8f08aa6
EPA-HQ-OAR-2018-0794-8467 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Memorandum: Summary of July 16, 2025, virtual Tribal Consultation meeting with the Summit Lake Paiute Tribe on the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:07Z   0 0 09000064b8ef5e30
EPA-HQ-OAR-2018-0794-8468 EPA National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions EPA-HQ-OAR-2018-0794 Memorandum: Tribal Consultation with the Ak-Chin Indian Community on the Proposed Repeal of the 2024 MATS Amendments Supporting & Related Material Memorandum 2026-02-24T05:00:00Z 2026 2     2026-02-24T18:43:07Z   0 0 09000064b8ef5e3d

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CREATE TABLE documents (
    id TEXT PRIMARY KEY,
    agency_id TEXT,
    docket_id TEXT REFERENCES dockets(id),
    title TEXT,
    document_type TEXT,
    subtype TEXT,
    posted_date TEXT,
    posted_year INTEGER,
    posted_month INTEGER,
    comment_start_date TEXT,
    comment_end_date TEXT,
    last_modified TEXT,
    fr_doc_num TEXT,
    open_for_comment INTEGER,
    withdrawn INTEGER,
    object_id TEXT
);
CREATE INDEX idx_docs_agency ON documents(agency_id);
CREATE INDEX idx_docs_docket ON documents(docket_id);
CREATE INDEX idx_docs_date ON documents(posted_date);
CREATE INDEX idx_docs_year ON documents(posted_year);
CREATE INDEX idx_docs_type ON documents(document_type);
CREATE INDEX idx_docs_frnum ON documents(fr_doc_num);
CREATE INDEX idx_docs_comment_end ON documents(comment_end_date) WHERE comment_end_date IS NOT NULL AND withdrawn = 0;
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