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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

31 rows where docket_id = "EPA-R08-OAR-2023-0641" sorted by posted_date descending

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document_type 3

  • Supporting & Related Material 29
  • Proposed Rule 1
  • Rule 1

posted_year 2

  • 2026 20
  • 2024 11

agency_id 1

  • EPA 31
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posted_date ▲ posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-R08-OAR-2023-0641-0022 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA-R08-OAR-2011-0770-0014_content Supporting & Related Material State/Tribal Submittal 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b919058e
EPA-R08-OAR-2023-0641-0020 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 WRAP TSS ND NOX BART Supporting & Related Material Technical Support Document 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:56Z   0 0 09000064b919057b
EPA-R08-OAR-2023-0641-0025 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 ND_RH2_SIPrevision_8-11-2022 Supporting & Related Material State/Tribal Submittal 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b91905a6
EPA-R08-OAR-2023-0641-0036 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 aq_aps_cholla_TitleV_app Supporting & Related Material Permit, Registration 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:59Z   0 0 09000064b91903ef
EPA-R08-OAR-2023-0641-0024 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Mineralogical Behaviour of North Dakota Lignite in an Oxygen Steam Blown Moving Bed Reactor Supporting & Related Material Study 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b91905a5
EPA-R08-OAR-2023-0641-0030 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 CENC Cost Analysis Supporting & Related Material Analysis 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b9190bb3
EPA-R08-OAR-2023-0641-0031 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 CEPCI Index Supporting & Related Material Index 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b918ee15
EPA-R08-OAR-2023-0641-0032 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 United States v Minnkota Power Coop Supporting & Related Material   2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b91903bb
EPA-R08-OAR-2023-0641-0037 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Tribune News Now Cholla Supporting & Related Material Publication 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:59Z   0 0 09000064b91903f2
EPA-R08-OAR-2023-0641-0028 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Technical Support Document for Arizona's BART Analyses and Determinations Supporting & Related Material State/Tribal Submittal 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b9190aa5
EPA-R08-OAR-2023-0641-0027 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 SCR Catalyst Performance Supporting & Related Material Study 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b918e353
EPA-R08-OAR-2023-0641-0033 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA-R06-OAR-2016-0611-0071_attachment_84_Cholla_Unit_4_BART_Analysis Supporting & Related Material Analysis 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:59Z   0 0 09000064b91903c5
EPA-R08-OAR-2023-0641-0021 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA-R08-OAR-2010-0406-0420_attachment_21 Supporting & Related Material Analysis 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b9190585
EPA-R08-OAR-2023-0641-0019 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Air Quality State Implementation Plans; Approvals and Promulgations: North Dakota; Regional Haze State Implementation Plan; Regional Haze Five Year Progress Report and Nitrogen Oxides Best Available Retrofit Technology Determination for Coal Creek Station for the First Implementation Period Rule   2026-03-10T04:00:00Z 2026 3 2026-03-10T04:00:00Z   2026-03-10T17:12:47Z 2026-04649 0 0 09000064b9206cf3
EPA-R08-OAR-2023-0641-0035 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 BART Analysis for Healy Power Plant Final Report Supporting & Related Material Analysis 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:59Z   0 0 09000064b91903d5
EPA-R08-OAR-2023-0641-0023 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Influence of Na and Ca on the Emission of NOx During Coal Combustion Supporting & Related Material Study 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b91905a4
EPA-R08-OAR-2023-0641-0026 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Reasonable Progress Analysis of Control Options For TriState Generation and Transmission Association Inc_Craig Station Unit 3 Supporting & Related Material Analysis 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:57Z   0 0 09000064b918e34c
EPA-R08-OAR-2023-0641-0034 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA Air Pollution Control Cost Manual 6th Edition Supporting & Related Material   2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:59Z   0 0 09000064b91903cb
EPA-R08-OAR-2023-0641-0038 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 258_Responses to Comments ND Regional Haze_Round1CCSBART_FINAL Supporting & Related Material Comment Response 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:14:00Z   0 0 09000064b91d5daf
EPA-R08-OAR-2023-0641-0029 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Cadmus Group - Selective Noncatalytic Reduction for NOx Supporting & Related Material Report 2026-03-10T04:00:00Z 2026 3     2026-03-10T17:13:58Z   0 0 09000064b9190aaa
EPA-R08-OAR-2023-0641-0001 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Air Quality State Implementation Plans; Approvals and Promulgations: North Dakota; Approval of Air Quality Implementation Plans; Regional Haze State Implementation Plan; Regional Haze Five Year Progress Report and Nitrogen Oxides Best Available Retrofit Technology Determination for Coal Creek Station for the First Implementation Period Proposed Rule   2024-08-14T04:00:00Z 2024 8 2024-08-14T04:00:00Z 2024-09-14T03:59:59Z 2024-09-14T01:00:57Z 2024-17471 0 0 0900006486643dab
EPA-R08-OAR-2023-0641-0003 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Coal Creek EJScreen Community Report Supporting & Related Material Report 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:44:53Z   0 0 0900006486622faf
EPA-R08-OAR-2023-0641-0007 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA Cost Control Manual Sec 4 Chapter 2 Supporting & Related Material Publication - USEPA 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:43:55Z   0 0 0900006486622fc1
EPA-R08-OAR-2023-0641-0005 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA Cost Control Manual Sec 1 Chapter 2 Supporting & Related Material Publication - USEPA 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:45:36Z   0 0 0900006486622fbc
EPA-R08-OAR-2023-0641-0009 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 ND_Proposed_RH2_SIPrevision_8-11-2022 Supporting & Related Material State/Tribal Submittal 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:43:41Z   0 0 0900006486622fd5
EPA-R08-OAR-2023-0641-0004 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Criteria Pollutuant Non Attainment Areas 852024 Supporting & Related Material   2024-08-14T04:00:00Z 2024 8     2024-08-15T00:44:09Z   0 0 0900006486622fb1
EPA-R08-OAR-2023-0641-0008 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 Minot Daily News Article Supporting & Related Material   2024-08-14T04:00:00Z 2024 8     2024-08-15T00:45:50Z   0 0 0900006486622fc2
EPA-R08-OAR-2023-0641-0002 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 8-20-2019_-_regional_haze_guidance_final_guidance Supporting & Related Material Guidance 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:44:39Z   0 0 0900006486622f9c
EPA-R08-OAR-2023-0641-0010 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 ND_RH_SIP_2010_v1.0.0 Supporting & Related Material State/Tribal Submittal 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:45:21Z   0 0 090000648662307c
EPA-R08-OAR-2023-0641-0006 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 EPA Cost Control Manual Sec 4 Chapter 1 Supporting & Related Material Publication - USEPA 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:44:25Z   0 0 0900006486622fc0
EPA-R08-OAR-2023-0641-0011 EPA ND Regional Haze SIP Round One Close Out EPA-R08-OAR-2023-0641 ND_RH_SIP_PPR_2015 Supporting & Related Material State/Tribal Submittal 2024-08-14T04:00:00Z 2024 8     2024-08-15T00:45:07Z   0 0 0900006486623081

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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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