--- schema_version: '1.0' id: government-20260728-1a64f5 content_kind: government-document url: https://www.federalregister.gov/documents/2026/07/28/2026-15206/takes-of-marine-mammals-incidental-to-specified-activities-taking-marine-mammals-incidental-to-us url_hash: 1a64f5aede50812367450af34ee278f72fc44aaf7c943b76bd268aa64039bf05 canonical_url: https://www.federalregister.gov/documents/2026/07/28/2026-15206/takes-of-marine-mammals-incidental-to-specified-activities-taking-marine-mammals-incidental-to-us source: us-federal-register category: government/us category_raw: Rule country: us region: us tags: - Administrative practice and procedure - Endangered and threatened species - Fish - Fisheries - Marine mammals - Penalties - Reporting and recordkeeping requirements - Transportation - Wildlife lang: en published_at: '2026-07-28T00:00:00Z' fetched_at: '2026-07-28T09:01:33.792155Z' updated_at: '2026-07-28T09:09:03Z' status: published content_hash: b3ea8386d888677f6c44d29e082688c6ace725482e0461c97e5f6f5eb757254a content_changed_at: null license_note: full license_basis: public-domain-17usc105 body_available: false attribution: 'Source: Office of the Federal Register, National Archives and Records Administration' license_rule: source:us-federal-register summary: NMFS, upon request from the U.S. Department of the Navy (Navy), issues these regulations pursuant to the Marine Mammal Protection Act (MMPA) to govern the taking of marine mammals incidental to training and testing activities using Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar systems in the western and central North Pacific and eastern Indian oceans over the course of 7 years from August 2026 through August 2033. These regulations allow for the issuance of a letter of authorization (LOA) for the incidental take of marine mammals during specified activities and timeframes, prescribe the permissible methods of taking and other means of effecting the least practicable adverse impact on marine mammal species and their habitat, and establish requirements pertaining to the monitoring and reporting of such taking. The Navy's activities are considered military readiness activities pursuant to the MMPA, as amended by the National Defense Authorization Act for Fiscal Year 2004 (2004 NDAA) and the NDAA for Fiscal Year 2019 (2019 NDAA). summary_source: official summary_en: NMFS, upon request from the U.S. Department of the Navy (Navy), issues these regulations pursuant to the Marine Mammal Protection Act (MMPA) to govern the taking of marine mammals incidental to training and testing activities using Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar systems in the western and central North Pacific and eastern Indian oceans over the course of 7 years from August 2026 through August 2033. These regulations allow for the issuance of a letter of authorization (LOA) for the incidental take of marine mammals during specified activities and timeframes, prescribe the permissible methods of taking and other means of effecting the least practicable adverse impact on marine mammal species and their habitat, and establish requirements pertaining to the monitoring and reporting of such taking. The Navy's activities are considered military readiness activities pursuant to the MMPA, as amended by the National Defense Authorization Act for Fiscal Year 2004 (2004 NDAA) and the NDAA for Fiscal Year 2019 (2019 NDAA). provenance: doc_id: 2026-15206 doc_id_scheme: fr_docnum issuer: - Commerce Department - National Oceanic and Atmospheric Administration doc_type: Rule subtype: null action: Final rule; notification of issuance of Letter of Authorization. significant: false entities: [] key_facts: [] related: [] related_auto: [] title: Takes of Marine Mammals Incidental to Specified Activities; Taking Marine Mammals Incidental to U.S. Navy Operations of Surveillance Towed Array Sensor System Low Frequency Active Sonar in the Western and Central North Pacific Ocean and Eastern Indian Ocean --- # Takes of Marine Mammals Incidental to Specified Activities; Taking Marine Mammals Incidental to U.S. Navy Operations of Surveillance Towed Array Sensor System Low Frequency Active Sonar in the Western and Central North Pacific Ocean and Eastern Indian Ocean ## TL;DR NMFS, upon request from the U.S. Department of the Navy (Navy), issues these regulations pursuant to the Marine Mammal Protection Act (MMPA) to govern the taking of marine mammals incidental to training and testing activities using Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar systems in the western and central North Pacific and eastern Indian oceans over the course of 7 years from August 2026 through August 2033. These regulations allow for the issuance of a letter of authorization (LOA) for the incidental take of marine mammals during specified activities and timeframes, prescribe the permissible methods of taking and other means of effecting the least practicable adverse impact on marine mammal species and their habitat, and establish requirements pertaining to the monitoring and reporting of such taking. The Navy's activities are considered military readiness activities pursuant to the MMPA, as amended by the National Defense Authorization Act for Fiscal Year 2004 (2004 NDAA) and the NDAA for Fiscal Year 2019 (2019 NDAA). ## Key Points - Administrative practice and procedure / Endangered and threatened species / Fish / Fisheries / Marine mammals / Penalties / Reporting and recordkeeping requirements / Transportation / Wildlife ## Details (本文なし。リンク先参照) ## Source 元記事: [Takes of Marine Mammals Incidental to Specified Activities; Taking Marine Mammals Incidental to U.S. Navy Operations of Surveillance Towed Array Sensor System Low Frequency Active Sonar in the Western and Central North Pacific Ocean and Eastern Indian Ocean](https://www.federalregister.gov/documents/2026/07/28/2026-15206/takes-of-marine-mammals-incidental-to-specified-activities-taking-marine-mammals-incidental-to-us) — published 2026-07-28T00:00:00Z