{"abstract":"EPA is proposing a significant new use rule (SNUR) under section 5(a)(2) of the Toxic Substances Control Act (TSCA) for elemental mercury (CAS No. 7439-97-6) for use in flow meters, natural gas manometers, and pyrometers, except for use in these articles when they are in service as of the effective date of the final rule. This action would require persons who intend to manufacture (including import) or process elemental mercury for an activity that is designated as a significant new use by this proposed rule to notify EPA at least 90 days before commencing that activity. Persons subject to the provisions of this proposed rule would not be exempt from significant new use reporting if they import into the United States or process elemental mercury as part of an article. The required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs.","action":"Proposed rule.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2009/09/11/E9-21894.html","cfr_references":[{"chapter":null,"citation_url":null,"part":721,"title":40}],"citation":"74 FR 46707","comment_url":null,"comments_close_on":"2009-11-10","correction_of":null,"corrections":[],"dates":"Comments must be received on or before November 10, 2009.","disposition_notes":null,"docket_ids":["EPA-HQ-OPPT-2008-0483","FRL-8432-3"],"dockets":[],"document_number":"E9-21894","effective_on":null,"end_page":46714,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2009/09/11/E9-21894.xml","html_url":"https://www.federalregister.gov/documents/2009/09/11/E9-21894/elemental-mercury-used-in-flow-meters-natural-gas-manometers-and-pyrometers-proposed-significant-new","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/E9-21894?publication_date=2009-09-11","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2009-09-11/E9-21894/mods.xml","not_received_for_publication":null,"page_length":8,"page_views":{"count":248,"last_updated":"2026-08-25 00:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2009-09-11/pdf/E9-21894.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2009-09-11","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2009/09/11/E9-21894.txt","regulation_id_number_info":{"2070-AJ36":{"issue":"201010","html_url":"https://www.federalregister.gov/regulations/2070-AJ36/mercury-significant-new-use-rule-for-elemental-mercury-in-flow-meters-manometers-and-pyrometers","title":"Mercury; Significant New Use Rule for Elemental Mercury in Flow Meters, Manometers, and Pyrometers","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201010&RIN=2070-AJ36&operation=OPERATION_EXPORT_XML","priority_category":"Routine and Frequent"}},"regulation_id_numbers":["2070-AJ36"],"regulations_dot_gov_info":{},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":46707,"subtype":null,"title":"Elemental Mercury Used in Flow Meters, Natural Gas Manometers, and Pyrometers; Proposed Significant New Use Rule","toc_doc":"Elemental Mercury Used in Flow Meters, Natural Gas Manometers, and Pyrometers","toc_subject":"Proposed Significant New Use Rule:","topics":["Chemicals","Environmental protection","Hazardous substances","Reporting and recordkeeping requirements"],"type":"Proposed Rule","volume":74}