documents: EPA-R09-OAR-2025-3821-0001

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posted_date posted_year posted_month comment_start_date comment_end_date last_modified fr_doc_num open_for_comment withdrawn object_id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-R09-OAR-2025-3821-0001 EPA EPA-R09-OAR-2025-3821 Air Quality State Implementation Plans; Approvals and Promulgations: Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards Proposed Rule   2026-03-04T05:00:00Z 2026 3 2026-03-04T05:00:00Z 2026-04-04T03:59:59Z 2026-04-04T09:00:24Z 2026-04339 0 0 09000064b91eefaa

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