[Federal Register Volume 90, Number 113 (Friday, June 13, 2025)]
[Notices]
[Pages 25038-25039]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-10454]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF DEFENSE

Department of the Navy


Notice of Public Meetings for Surveillance Towed Array Sensor 
System Low-Frequency Array Sonar Training and Testing Supplemental 
Environmental Impact Statement/Overseas Environmental Impact Statement 
in the Western North Pacific and Indian Oceans (ID# SEIS-007-17-USN-
1727716941)

AGENCY: Department of the Navy (DoN), Department of Defense (DoD).

ACTION: Notice.

-----------------------------------------------------------------------

SUMMARY: Pursuant to the National Environmental Policy Act (NEPA) and 
Presidential Executive Order 12114, DoN has prepared and filed with the 
U.S. Environmental Protection Agency a Draft Supplemental Environmental 
Impact Statement/Overseas Environmental Impact Statement (SEIS/OEIS) 
for Surveillance Towed Array Sensor System Low-Frequency Active 
(SURTASS LFA) Sonar Training and Testing in the Western North Pacific 
and Indian Oceans. The Draft SEIS/OEIS includes an analysis of the 
potential environmental impacts associated with conducting at-sea 
training and testing activities within the SURTASS LFA Study Area. The 
purpose of the Proposed Action is to perform training and testing 
activities that ensure the Navy remains proficient in the use of 
SURTASS LFA sonar in support of the Navy's mission.

DATES: The 45-day public comment period begins June 13, 2025 and ends 
July 28, 2025. In support of NEPA requirements, virtual public meetings 
will be held in July 2025 to provide an overview of the Draft SEIS/OEIS 
and answer questions from the public. The public can submit comments 
during the Draft SEIS/OEIS public review and comment period via the 
project website (www.nepa.navy.mil/surtass-lfa/), or via U.S. mail. 
Public comments on the Draft SEIS/OEIS must be postmarked or received 
online by 11:59 p.m. Hawaii Standard Time (HST) Monday, July 28, 2025, 
for consideration in the preparation of the Final SEIS/OEIS.
    Two virtual public meetings will be held as follows:
    1. July 8, 2025, from 12:00 p.m. to 1:00 p.m. HST
    2. July 14, 2025, from 4:00 p.m. to 5:00 p.m. HST
    During the virtual public meetings, Navy representatives will 
provide a short presentation and answer questions submitted by the 
public. Questions concerning the Draft SEIS/OEIS will be accepted in 
advance through July 8, 2025, via the question form on the project 
website. Questions may also be submitted in writing during the meeting. 
Questions submitted during the question-and-answer session are not 
official public comments; public comments should be submitted via the 
project website (www.nepa.navy.mil/surtass-lfa/), or via U.S. mail. An 
audio-only option will be available for the virtual public meeting. The 
project website has more information on attending the virtual public 
meeting.
    Additional materials will be available on the project website to 
provide more

[[Page 25039]]

information related to the Proposed Action, its purpose and need, 
environmental resource areas analyzed in the SEIS/OEIS and potential 
impacts, the NEPA process, and public involvement opportunities. The 
public can view the online materials at the project website anytime 
during the Draft SEIS/OEIS public review and comment period.

ADDRESSES: Comments on the Draft EIS/OEIS may be provided through the 
project website at: www.nepa.navy.mil/surtass-lfa/, or by U.S. mail to: 
U.S. Department of the Navy; Attention: SURTASS LFA SEIS/OEIS Project 
Manager (N46); 250 Makalapa Drive, Pearl Harbor, HI 96860-3131.

FOR FURTHER INFORMATION CONTACT: U.S. Pacific Fleet Command, Attn: Ms. 
Heather Paynter, Environmental Public Affairs Specialist, 808-474-8441, 
[email protected], or visit the project website: 
www.nepa.navy.mil/surtass-lfa/.

SUPPLEMENTARY INFORMATION: Commander, U.S. Pacific Fleet is the DoN's 
lead action proponent, with Naval Sea Systems Command acting as an 
additional Navy action proponent.
    In continuance of the Navy's commitment to responsible stewardship 
of the marine environment and building upon analyses and information 
included in the Navy's 2001 Final EIS/OEIS, 2007 Final SEIS, 2012 Final 
SEIS/Supplemental OEIS (SOEIS), 2015 Final SEIS/SOEIS, and 2019 Final 
SEIS/SOEIS, the Navy intends to prepare an updated supplemental 
assessment of the environmental effects associated with the continued 
employment of SURTASS LFA sonar systems. The SEIS/OEIS and associated 
analysis will be used to support consultations associated with expiring 
regulatory permits and authorizations in 2026.
    The Western Pacific and Indian Oceans SURTASS LFA Study Area 
(hereafter referred to as the ``Study Area'') is comprised of the 
western North Pacific and Indian Oceans. The Navy proposes to continue 
employing up to four SURTASS LFA sonar systems onboard U.S. Navy 
surveillance ships for routine training and testing in the Study Area 
with certain geographical restrictions and other preventive measures 
designed to mitigate adverse effects on the marine environment. As part 
of the SEIS/OEIS analyses, the Navy will continue to assess potential 
impacts of SURTASS LFA sonar systems to offshore biologically important 
areas. Effectiveness of the mitigation measures that are the foundation 
of the Navy's training and testing with SURTASS LFA sonar will also be 
re-assessed in the context of new technologies and methodologies as 
well as operational practicability.
    Potential impacts on environmental resources resulting from 
activities included in the two Action Alternatives and the No Action 
Alternative were evaluated in accordance with NEPA. Resources evaluated 
include, but are not limited to, biological (including marine mammals, 
sea turtles, fishes, and habitats), ambient acoustic environment, and 
economics. The SEIS/OEIS also includes an analysis of measures that 
would avoid, minimize, or mitigate environmental effects potentially 
resulting from military readiness activities. Direct, indirect, and 
reasonably foreseeable effects on these resource areas are analyzed in 
the SEIS/OEIS.
    The DoN is coordinating and consulting with appropriate federal 
agencies as required by the Marine Mammal Protection Act (MMPA), 
Endangered Species Act (ESA), and National Marine Sanctuaries Act. As 
part of this process, the Navy is seeking the issuance of regulatory 
permits and authorizations under MMPA and ESA to support at-sea 
military readiness activities within the Study Area, beginning in 
August 2026. The National Marine Fisheries Service (NMFS) is a 
cooperating agency in the preparation of the SEIS/OEIS. NMFS will 
consider the potential impacts of the Proposed Action on the marine 
environment. The SEIS/OEIS will support its rule making process to 
determine whether to issue an MMPA authorization.
    The Navy distributed the Draft SEIS/OEIS to government agencies 
they are consulting with and to other stakeholders. The Draft SEIS/OEIS 
is available for public review on the project website at 
www.nepa.navy.mil/surtass-lfa/ and at these public libraries:
    1. Hawaii State Library, 478 S King St., Honolulu, HI 96813.
    2. Nieves M. Flores Memorial Public Library, 254 Martyr St., 
Hag[aring]t[ntilde]a, Guam 96910.
    3. Antonio C. Atalig Memorial Library, P.O. Box 537, Rota, MP 
96951.
    4. Joeten-Kiyu Public Library, The State Library of the 
Commonwealth of Northern Marianas Islands, P.O. Box 501092, Saipan, MP 
96950-1092.
    5. Tinian Public Library, P.O. Box 520704, Tinian, MP 96952.
    The public involvement process is helpful in identifying public 
concerns and local issues to be considered during the development of 
the SEIS/OEIS and assessing the accuracy and adequacy of the 
environmental impact analysis. Federal, state, and local agencies; 
nongovernmental organizations; and interested persons are encouraged to 
provide comments that are substantive to the analysis of potential 
impacts on environmental resources. All comments provided 
electronically via the project website or mailed to the address 
provided in the ADDRESSES section will be taken into consideration 
during the development of the Final SEIS/OEIS.

    Dated: June 4, 2025.
A.R. DeMaio,
Lieutenant Commander, Judge Advocate General's Corps, U.S. Navy, 
Federal Register Liaison Officer.
[FR Doc. 2025-10454 Filed 6-12-25; 8:45 am]
BILLING CODE 3810-FF-P