{"abstract":"Through this rule, NMFS revises critical habitat for Snake River spring/summer chinook salmon (Oncorhynchus tshawytscha), pursuant to the Endangered Species Act (ESA) of 1973. After a review of the best available scientific information, NMFS determines that Napias Creek Falls constitutes a naturally impassable barrier for Snake River spring/summer chinook salmon. NMFS, therefore, excludes areas above Napias Creek Falls from designated critical habitat for this species.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF COMMERCE","name":"Commerce Department","id":54,"url":"https://www.federalregister.gov/agencies/commerce-department","json_url":"https://www.federalregister.gov/api/v1/agencies/54","parent_id":null,"slug":"commerce-department"},{"raw_name":"National Oceanic and Atmospheric Administration","name":"National Oceanic and Atmospheric Administration","id":361,"url":"https://www.federalregister.gov/agencies/national-oceanic-and-atmospheric-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/361","parent_id":54,"slug":"national-oceanic-and-atmospheric-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/1999/10/25/99-27585.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"226","title":50}],"citation":"64 FR 57399","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"The effective date of this determination is November 24, 1999.","disposition_notes":null,"docket_ids":["Docket No. 990525143-9277-02","I.D. 120197A"],"dockets":[],"document_number":"99-27585","effective_on":"1999-11-24","end_page":57403,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1999/10/25/99-27585/designated-critical-habitat-revision-of-critical-habitat-for-snake-river-springsummer-chinook-salmon","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/99-27585?publication_date=1999-10-25","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1999-10-25/99-27585/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":526,"last_updated":"2026-10-23 16:15:07 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1999-10-25/pdf/99-27585.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1999-10-25","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1999/10/25/99-27585.txt","regulation_id_number_info":{"0648-AM41":{"issue":"199910","html_url":"https://www.federalregister.gov/regulations/0648-AM41/redesignation-of-critical-habitat-for-snake-river-spring-summer-chinook","title":"Redesignation of Critical Habitat for Snake River Spring/Summer Chinook","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=199910&RIN=0648-AM41&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["0648-AM41"],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T11:27:41Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":57399,"subtype":null,"title":"Designated Critical Habitat: Revision of Critical Habitat for Snake River Spring/Summer Chinook Salmon","toc_doc":null,"toc_subject":null,"topics":[],"type":"Rule","volume":64}