{"abstract":"EPA is proposing to approve revisions to the California State Implementation Plan (SIP) which concern the control of oxides of nitrogen (NO<INF>X</INF>) emissions from solid fuel fired boilers, steam generators and process heaters within the San Joaquin Valley Unified Air Pollution Control District and from stationary gas turbine operations within the Sacramento Metropolitan Air Quality Management District. The intended effect of proposing approval of these rules is to regulate emissions of NO<INF>X </INF>in accordance with the requirements of the Clean Air Act, as amended in 1990 (CAA or the Act). In the Final Rules Section of this Federal Register, the EPA is approving the state's SIP revision as a direct final rule without prior proposal because the Agency views this as a noncontroversial revision amendment and anticipates no adverse comments. A detailed rationale for this approval is set forth in the direct final rule. If no adverse comments are received in response to this rule, no further activity is contemplated in relation to this rule. If EPA receives adverse comments, the direct final rule will not take effect and all public comments received will be addressed in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period on this document. Any parties interested in commenting on this action should do so at this time.","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/1999/02/11/99-3144.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"64 FR 6827","comment_url":null,"comments_close_on":"1999-03-15","correction_of":null,"corrections":[],"dates":"Written comments must be received by March 15, 1999.","disposition_notes":null,"docket_ids":["CA 164-0112b","FRL-6227-3"],"dockets":[],"document_number":"99-3144","effective_on":null,"end_page":6827,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1999/02/11/99-3144/approval-and-promulgation-of-state-implementation-plans-california-state-implementation-plan","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/99-3144?publication_date=1999-02-11","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1999-02-11/99-3144/mods.xml","not_received_for_publication":null,"page_length":1,"page_views":{"count":18,"last_updated":"2026-09-20 10:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1999-02-11/pdf/99-3144.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1999-02-11","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1999/02/11/99-3144.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T00:17:04Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":6827,"subtype":null,"title":"Approval and Promulgation of State Implementation Plans; California State Implementation Plan Revision, San Joaquin Valley Unified Air Pollution Control District, Sacramento Metropolitan Air Quality Management District","toc_doc":null,"toc_subject":null,"topics":[],"type":"Proposed Rule","volume":64}