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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)

12 rows where docket_id = "EPA-R10-OAR-2026-4291" sorted by posted_date descending

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posted_year 1

  • 2026 12

document_type 1

  • Supporting & Related Material 12

agency_id 1

  • EPA 12
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posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-R10-OAR-2026-4291-0004 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 103_ltr_NWCAA_NSPS_2021a_2023-05-10 final Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:27Z   0 0 09000064b9635868
EPA-R10-OAR-2026-4291-0005 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 206_ltr_NWCAA_NESHAP_2021a_2023-05-02 Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:30Z   0 0 09000064b9635869
EPA-R10-OAR-2026-4291-0008 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 204_2001-08-13 FR WA Title V full app Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:40Z   0 0 09000064b96358a8
EPA-R10-OAR-2026-4291-0012 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 200_2024 NESHAP Delegation Update Request Ltr Signed Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:53Z   0 0 09000064b96358ac
EPA-R10-OAR-2026-4291-0002 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 101_2024 01 16 NWCAA Delegation Request 2024 NSPS Att B Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:22Z   0 0 09000064b9635866
EPA-R10-OAR-2026-4291-0003 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 202_2024 01 16 NWCAA Delegation Request 2024 NESHAP Att C Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:24Z   0 0 09000064b9635867
EPA-R10-OAR-2026-4291-0009 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 205_1994-11-09 FR Ecology title V final interim app Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:42Z   0 0 09000064b96358a9
EPA-R10-OAR-2026-4291-0010 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 100_2024 NSPS Delegation Update Request Ltr Signed Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:46Z   0 0 09000064b96358aa
EPA-R10-OAR-2026-4291-0011 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 203_24-05091-R10--APTB_Response_ltr_NWCAA_NESHAP_2023 Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:49Z   0 0 09000064b96358ab
EPA-R10-OAR-2026-4291-0006 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 102_24-05094-R10--APTB_Response_ltr_NWCAA_NSPS_2023 Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:35Z   0 0 09000064b963586a
EPA-R10-OAR-2026-4291-0007 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 207_original delegation_63 FR 66054 (1998) Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:37Z   0 0 09000064b96358a7
EPA-R10-OAR-2026-4291-0001 EPA New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State EPA-R10-OAR-2026-4291 201_2024 01 16 NWCAA Delegation Request 2024 NESHAP Att B Supporting & Related Material   2026-10-06T04:00:00Z 2026 10     2026-10-06T19:43:19Z   0 0 09000064b9635865

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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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