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

Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API

comment_end_date
A FULL UTC INSTANT, not a calendar date, despite the column name: '2026-08-29T03:59:59Z' is 11:59:59 PM EASTERN on 2026-08-28. Federal comment periods close at 11:59:59 PM Eastern, so the UTC calendar date is ONE DAY LATER than the official deadline on every end-of-day close — 444,689 of the 444,690 populated rows (measured 2026-09-06). Convert to America/New_York before presenting a deadline, and compare with julianday(comment_end_date) > julianday('now'): a plain > datetime('now') is a TEXT comparison between two different formats and keeps already-closed dockets matching for up to ~20 hours. The sibling column on open_comments.documents WAS corrected to an Eastern calendar date (queue #498); this one is unchanged and still an instant — the two databases do not agree on grain. (queue #644)
comment_start_date
A FULL UTC INSTANT, not a calendar date, despite the column name — same grain as comment_end_date on this table. Convert to America/New_York before presenting it. (queue #644)

7 rows where docket_id = "EPA-R06-OAR-2025-2270" sorted by posted_date descending

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document_type 3

  • Supporting & Related Material 5
  • Proposed Rule 1
  • Rule 1

posted_year 1

  • 2026 7

agency_id 1

  • EPA 7
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posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-R06-OAR-2025-2270-0010 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 OK047.10 Air Quality State Implementation Plans; Approvals and Promulgations; Oklahoma; Interstate Transport Requirements for the 2010 Sulfur Dioxide (SO2) National Ambient Air Quality Standard (NAAQS), Final rule, 4 pages Rule   2026-10-08T04:00:00Z 2026 10 2026-10-08T04:00:00Z   2026-10-08T20:08:28Z 2026-20640 0 0 09000064b9651d9a
EPA-R06-OAR-2025-2270-0006 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 TX047.06 OK SO2 Emissions Trends.xlsx Supporting & Related Material   2026-02-12T05:00:00Z 2026 2     2026-02-12T23:06:50Z   0 0 09000064b91a5a6d
EPA-R06-OAR-2025-2270-0003 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 OK047.03 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section l10(a)(2) submitted to EPA May 28, 2021 (OK-78) Supporting & Related Material   2026-02-12T05:00:00Z 2026 2     2026-02-12T23:04:06Z   0 0 09000064b8fe5e50
EPA-R06-OAR-2025-2270-0001 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 OK047.01 Air Quality State Implementation Plans; Approvals and Promulgations; Oklahoma; Interstate Transport Requirements for the 2010 SO2 National Ambient Air Quality Standard (NAAQS), Proposed rule, 7 pages Proposed Rule   2026-02-12T05:00:00Z 2026 2 2026-02-12T05:00:00Z 2026-03-17T03:59:59Z 2026-03-17T09:00:17Z 2026-02841 0 0 09000064b91a71e5
EPA-R06-OAR-2025-2270-0005 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 TX047.05 Air Quality Monitors in Oklahoma and Neighboring States.xlsx Supporting & Related Material   2026-02-12T05:00:00Z 2026 2     2026-02-12T23:05:58Z   0 0 09000064b8fee3fe
EPA-R06-OAR-2025-2270-0002 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 OK047.02 EPA Technical Suppoert Document (TSD) Oklahoma SO2 Transport _Jan26 Supporting & Related Material   2026-02-12T05:00:00Z 2026 2     2026-02-12T23:03:22Z   0 0 09000064b8fe5e4f
EPA-R06-OAR-2025-2270-0004 EPA OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78) EPA-R06-OAR-2025-2270 OK047.04 Breakdown of 2020 NEI SO2 Emissions for OK Point Sources Facilities.xlsx Supporting & Related Material   2026-02-12T05:00:00Z 2026 2     2026-02-12T23:05:04Z   0 0 09000064b8fedc59

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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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