Draft Monument Management Plan and Environmental Assessment

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The Marianas Trench Marine National Monument Draft Management Plan and Environmental Assessment is available for public review and comment.


The draft Monument Management Plan is the proposed road map for protecting and connecting with the Monument and learning about its marine resources and geologic features. It details a series of management activities that are captured in 11 action plans to meet the six Monument management goals.

NOAA Fisheries and the U.S. Fish and Wildlife Service, in cooperation with the CNMI Government, prepared the draft Monument Management Plan. They received significant input from the Mariana Trench Monument Advisory Council. Public comments received during the 2012 public scoping meetings held in the CNMI and Guam helped shape the plan. 

The plan defines agency management roles and responsibilities and lays out the goals, objectives, and proposed management activities for the next 15 years. It includes an environmental assessment to evaluate the potential impacts of implementing the proposed management actions.

Your Voice Matters! 

Public comments on the Draft Monument Management Plan and Environmental Assessment provide meaningful and important feedback. Please see the Federal Register notice or Planning Update #5 to learn how to submit comments and for more information.

Information Meetings on the Marianas Trench Marine National Monument Draft Management Plan

NOAA Fisheries and the U.S. Fish and Wildlife Service (FWS) are hosting four virtual meetings in June to provide community-focused opportunities for anyone interested in learning more about the draft management plan for the Marianas Trench Marine National Monument. NOAA Fisheries and U.S. FWS staff will be available to answer questions on the plan during these informational meetings. All four meetings will be held from 5:30 – 7 p.m. ChST. Participants can attend virtually or via phone.

NOAA Fisheries and U.S. FWS are extending the comment period for the draft management plan and corresponding environmental assessment for 60 calendar days, to close tentatively on July 26, 2021. The exact date will be confirmed when the Federal Register notice is published on or about May 24, 2021. Comments are being accepted online and by mail to: Superintendent, Marianas Trench Marine National Monument, P.O. Box 8134 MOU-3, Dededo, GU 96912.

Meeting Information

You may join the Webex meetings using a web browser, the WebEx desktop app (app installation required), a mobile app (app installation required), or a phone call (audio only), as specified above. After you click on the link, you will be asked to register by providing your name and email, and indicate whether you would like to ask a question.

WebEx meeting password: trench

If you do not have internet access, you may join by phone: US Toll: +1-415-527-5035

Wednesday, June 2, 5:30 p.m. ChST, Tinian

WebEx Meeting - https://noaanmfs-meets.webex.com/noaanmfs-meets/onstage/g.php?MTID=e50b8a7805dc30183c17822b48e3913d9

Phone meeting access code: 199 773 3862

Thursday, June 3, 5:30 p.m. ChST, Rota

WebEx Meeting - https://noaanmfs-meets.webex.com/noaanmfs-meets/onstage/g.php?MTID=e97db3c69cc501cf881bd6b61b0266993

Phone meeting access code: 199 284 6500

Tuesday, June 8, 5:30 p.m. ChST, Saipan

WebEx Meeting - https://noaanmfs-meets.webex.com/noaanmfs-meets/onstage/g.php?MTID=ed062a9a6af545489e80e8cb980d5b57d

Phone meeting access code: 199 320 4912

Thursday, June 10, 5:30 p.m. ChST, Guam

WebEx Meeting - https://noaanmfs-meets.webex.com/noaanmfs-meets/onstage/g.php?MTID=ef00b670746bd088d2fd679a0478765e9

Phone meeting access code: 199 558 2463

More Information

NOAA Fisheries Marianas Trench Marine National Monument page

Notice of Availability of the Marianas Trench Marine National Monument Draft Management Plan and Environmental Assessment

Draft Monument Management Plan and Environmental Assessment

Full Document (11.8MB)

Planning Updates

Planning Update 5 - (February 2021)

Planning Update 4 - Visitor Center Working Group Public Listening Sessions Scheduled, Published Fishing Regulations, and Draft Goals (September 2014)

Planning Update 3 - This update summarizes the comments and questions received and our response. (March 2013)

Planning Update 2 - Public Scoping Meetings for Monument Management Planning Announced (February 2012)

Planning Update 1 - Charting a Course for the Marianas Trench Marine National Monument (May 2011)

Compliance Guide for Monument Fishing - This guide provides information on how to comply with fishing requirements in the Mariana Trench Marine National Monument.