documents: EPA-HQ-OAR-2004-0394-0022

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

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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posted_date posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-2004-0394-0022 EPA EPA-HQ-OAR-2004-0394 A-95-58-F-R-FEBRUARY-20-1997 National Ambient Air Quality Standards for Ozone and Particulate Matter, Proposed Decision; Requirements for Designation of Reference and Equivalent Methods for PM2.5 and Ambient Air Quality Surveillance for Particulate Matter, Proposed Decision; Interim Implementation Policy on New or Revised Ozone and Particulate Matter National Ambient Air Quality Standards, etc. Proposed Rule Extension of Comment Period 2019-10-31T04:00:00Z 2019 10 2019-10-31T04:00:00Z 1997-03-13T04:59:59Z 2019-10-31T16:31:22Z 97-4330 0 0 0900006484110948

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