{"database": "openregs", "table": "federal_register", "rows": [["2025-17079", "Ambient Air Monitoring Reference and Equivalent Methods; Designation of Three New Equivalent Methods and One New Reference Method", "Notice", "Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new equivalent method for measuring SO<INF>2</INF>, one new reference method for measuring NO<INF>2</INF>, one new equivalent method for measuring concentrations of PM<INF>2.5</INF>, and one new equivalent method for measuring PM<INF>10-2.5</INF> in ambient air.", "2025-09-05", 2025, 9, "https://www.federalregister.gov/documents/2025/09/05/2025-17079/ambient-air-monitoring-reference-and-equivalent-methods-designation-of-three-new-equivalent-methods", "https://www.govinfo.gov/content/pkg/FR-2025-09-05/pdf/2025-17079.pdf", "Environmental Protection Agency", "145", "Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new equivalent method for measuring SO<INF>2</INF>, one new reference method for measuring NO<INF>2</INF>, one new equivalent method for measuring concentrations...", null]], "columns": ["document_number", "title", "type", "abstract", "publication_date", "pub_year", "pub_month", "html_url", "pdf_url", "agency_names", "agency_ids", "excerpts", "regulation_id_numbers"], "primary_keys": ["document_number"], "primary_key_values": ["2025-17079"], "units": {}, "query_ms": 3.2280209998134524, "source": "Federal Register API & Regulations.gov API", "source_url": "https://www.federalregister.gov/developers/api/v1", "license": "Public Domain (U.S. Government data)", "license_url": "https://www.regulations.gov/faq"}