[Federal Register Volume 90, Number 108 (Friday, June 6, 2025)]
[Notices]
[Pages 24109-24111]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-09429]


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DEPARTMENT OF DEFENSE

Department of the Navy


Notice of Intent To Prepare a Supplemental Environmental Impact 
Statement/Overseas Environmental Impact Statement for the Mariana 
Islands Training and Testing (ID# EISX-007-17-USN-1744382878)

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

ACTION: Notice.

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SUMMARY: Pursuant to the National Environmental Policy Act (NEPA), the 
National Environmental Policy Act of 1969, DoN regulations, and 
Presidential Executive Order 12114, the DoN (including both the United 
States (U.S.) Navy and the U.S. Marine Corps (USMC)) as the lead 
agency, jointly with the U.S. Air Force, the U.S. Army, and the U.S. 
Coast Guard (referred to as ``Action Proponents''), announce their 
intent to prepare a supplement to the 2015 Mariana Islands Training and 
Testing (MITT) Environmental Impact Statement (EIS)/Overseas EIS (OEIS) 
and the 2020 MITT Supplemental EIS (SEIS)/OEIS. The MITT SEIS/OEIS will 
include an analysis of training activities (referred to as 
``training''); research, development, testing, and evaluation (referred 
to as ``testing'') activities; and range modernization and sustainment 
that will be conducted in the MITT Study Area beginning in July 2027. 
When discussed together, these activities are referred to as ``military 
readiness activities.''

DATES: The 45-day public scoping period begins on June 7, 2025, and 
ends on July 22, 2025, Chamorro Standard Time (ChST). The scoping 
period is extended 15 calendar days (from the usual 30-day period) to 
allow more time to provide comments. The DoN will host a virtual 
presentation and have public outreach material on the project website 
during the scoping period to

[[Page 24110]]

provide information related to the Proposed Action, its purpose and 
need, alternatives under consideration, environmental resource areas to 
be analyzed in the SEIS/OEIS, the NEPA process, the consultation under 
Section 106 of the National Historic Preservation Act (NHPA), and 
public involvement opportunities.

ADDRESSES: Comments on the scope of the SEIS/OEIS or information 
regarding the project's potential to affect historic properties 
pursuant to section 106 of the NHPA through the project website at 
www.nepa.navy.mil/mitteis or by mail to: Naval Facilities Engineering 
Systems Command Pacific, Attention: MITT SEIS/OEIS Project Manager, 258 
Makalapa Drive, Suite 100, Pearl Harbor, HI 96860-3134.

FOR FURTHER INFORMATION CONTACT: U.S. Pacific Fleet Command, Attention: 
Ms. Heather Paynter, Environmental Public Affairs Specialist, 808-471-
3769, [email protected], or visit the project website at 
www.nepa.navy.mil/mitteis.

SUPPLEMENTARY INFORMATION:  Within the DoN, the lead action proponent 
is Commander, U.S. Pacific Fleet. Additional DoN action proponents 
include Naval Sea Systems Command, Naval Air Systems Command, Office of 
Naval Research, and the U.S. Marine Corps (USMC). In addition to DoN 
action proponents, this SEIS/OEIS includes certain activities by the 
U.S. Air Force, U.S. Army, and U.S. Coast Guard when those activities 
are similar to Navy or USMC activities and are scheduled on DoN 
controlled at-sea ranges.
    Proposed military readiness activities are generally consistent 
with those analyzed in the 2015 MITT EIS/OEIS and the 2020 MITT SEIS/
OEIS and are representative of activities that the services have been 
conducting off Guam and around Commonwealth of the Northern Mariana 
Islands for decades.
    The MITT Study Area (hereafter referred to as the ``Study Area'') 
is the same Study Area used for the 2015 MITT EIS/OEIS and the 2020 
MITT SEIS/OEIS analysis, which includes in-water areas within the 
Mariana Islands Range Complex (MIRC), areas on the high seas to the 
north and west of the MIRC, a transit corridor between the MIRC and the 
Hawaii Range Complex, and pier side within Apra Harbor. The Study Area 
excludes land-based training areas located on Guam, Saipan, Tinian, and 
Rota that were included in the 2015 MITT EIS/OEIS. Similar to the 2020 
MITT SEIS/OEIS, this action does not propose any changes to land-based 
activities on these islands that were analyzed in the 2015 MITT EIS/
OEIS. Thus, activities on these islands are not reanalyzed in this 
supplement. As in the 2020 SEIS/OEIS, the only land component included 
in the Study Area is Farallon de Medinilla.
    The Proposed Action is to continue to conduct military readiness 
activities within the Study Area. These activities include the use of 
active sonar and explosives while employing appropriate marine species 
protective mitigation measures.
    The purpose of the Proposed Action is to ensure the U.S. military 
services, to include the U.S. Coast Guard, can organize, train, and 
equip service members and personnel to meet their respective national 
defense missions in accordance with their Congressionally-mandated 
requirements \1\ and advance joint interoperability in Navy led 
exercises with other military services including foreign allies. A 
SEIS/OEIS is considered the appropriate level of analysis as there are 
updated activities which are similar to those analyzed in the 2015 MITT 
EIS/OEIS and the MITT 2020 SEIS/OEIS, and scientific information and 
acoustic effects criteria that are relevant to understanding the 
environmental effects of the Proposed Action. New information since the 
2015 EIS/OEIS and the 2020 SEIS/OEIS will be considered in furtherance 
of NEPA and will support Marine Mammal Protection Act (MMPA) 
authorization requests.
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    \1\ 10 U.S.C. 8062 (Navy), 8063 (USMC), 9062 (U.S. Air Force), 
and 7062 (U.S. Army); and 14 U.S.C. 101-102 (U.S. Coast Guard).
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    The Action Proponents have identified two preliminary action 
alternatives to carry forward for analysis in the SEIS/OEIS along with 
the No Action Alternative. Alternative 1 reflects a representative year 
of training and testing to account for the natural fluctuation of 
training cycles and deployment schedules that generally limit the 
maximum level of training and testing occurring every year over any 
seven-year period. Alternative 2 reflects the maximum number of 
training and testing activities that could occur within a given year 
and assumes that the maximum level of activity would occur every year 
over any seven-year period. As required by NEPA for the purpose of 
establishing a baseline for analysis, a No Action Alternative will be 
evaluated which represents a scenario where no military readiness 
activities are conducted in the Study Area. The tempo and types of 
military readiness activities have fluctuated because of the 
introduction of new technologies, the evolving nature of international 
events, advances in war fighting doctrine and procedures, and changes 
in force structure (organization and basing of ships, submarines, 
aircraft, weapons, and Sailors). Such developments influence the 
frequency, type, duration, intensity, and location of required military 
readiness activities. The MITT SEIS/OEIS will reflect the current 
compilation of training and testing activities required to fulfill the 
military readiness requirements, and therefore both action alternatives 
include the analysis of newly proposed activities and changes to 
previously analyzed activities. Additionally, both action alternatives 
will include range modernization and sustainment necessary to support 
military readiness activities.
    Environmental resources that are determined to be potentially 
affected are carried forward for full analysis. Resources to be 
evaluated include, but are not limited to, biological resources 
(including marine mammals and other protected species), sediments and 
water quality, air quality, noise, cultural resources, socioeconomics, 
and public health and safety. The Action Proponents will also analyze 
measures that would avoid, minimize, or mitigate environmental effects. 
The Action Proponents will conduct all coordination and consultation 
activities required by the MMPA, NHPA, ESA, Magnuson[hyphen]Stevens 
Fishery Conservation and Management Act, Coastal Zone Management Act, 
Clean Air Act, and other laws and regulations determined to be 
applicable to the project. As part of this process, the DoN will seek 
the reissuance of authorizations under MMPA and ESA to support at-sea 
military readiness requirements within the Study Area beginning in July 
2027.
    Pursuant to NEPA, the Action Proponents invited the National 
Oceanic and Atmospheric Administration's National Marine Fisheries 
Service to be a cooperating agency in preparation of the SEIS/OEIS.
    The scoping process is helpful in identifying public concerns and 
local issues to be considered during the development of the SEIS/OEIS. 
Federal agencies, Territorial agencies, the public, and interested 
persons are invited to comment on the scope of the SEIS/OEIS, including 
identifying potential alternatives or issues that should be addressed 
in the NEPA analysis, relaying environmental concerns, and providing 
information or analysis relevant to the Proposed Action or the 
project's potential to affect historic properties pursuant to Section 
106 of the NHPA.

[[Page 24111]]

    Scoping comments submitted via the project website or mailed to the 
address provided in the ADDRESSES section will be considered during the 
development of the Draft SEIS/OEIS. Scoping comments should be 
postmarked or received online by 11:59 p.m. ChST on July 22, 2025, for 
consideration in the Draft SEIS/OEIS.
    After the scoping period, the Action Proponents will coordinate 
with participating and cooperating agencies to develop a Draft SEIS/
OEIS. The Action Proponents intends to release the Draft SEIS/OEIS in 
the winter of 2026, release the Final SEIS/OEIS in the winter of 2027, 
and sign a Record of Decision following the 30-day Final SEIS/OEIS wait 
period.

    Dated: May 21, 2025.
A.R. DeMaio,
Lieutenant Commander, Judge Advocate General's Corps, U.S. Navy, 
Federal Register Liaison Officer.
[FR Doc. 2025-09429 Filed 6-5-25; 8:45 am]
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