PUBLIC LANDS WATCH

Northeast Canyons and Seamounts Marine National Monument

Atlantic Ocean, approximately 130 miles southeast of Cape Cod, Massachusetts · Marine National Monument (Antiquities Act) · managed by NOAA / National Marine Fisheries Service; Department of the Interior

Status: Reversed — proclamation signed and implementing rule published Threat: Commercial fishing access opened within protected monument waters
Scope
Place file — a specific parcel of public land
Coordinates
40.2, -68.2
Page last verified
2026-08-17
Site maintainer of record
Alicen M.
Last edit
2026-08-17 by Alicen M.
File
/northeast-canyons-seamounts

01 — Historical & Cultural Record

The Northeast Canyons and Seamounts Marine National Monument is the only marine national monument in the U.S. Atlantic. A full designation history — the 2016 proclamation establishing it, its acreage, the canyons and seamounts it was created to protect, and the species records supporting that designation — is not yet documented on this page. This case file was opened on August 17, 2026 on the basis of the 2026 actions described below, which are documented; per the registry's new-site standard, the historical record section stays in place, labeled incomplete, rather than being filled from memory.

02 — Current Threat

On February 6, 2026, President Trump signed Proclamation 11009, "Unleashing American Commercial Fishing in the Atlantic," opening the Northeast Canyons and Seamounts Marine National Monument to commercial fishing.23

On April 6, 2026, NOAA published a final rule rescinding the Magnuson-Stevens Act commercial-fishing restrictions that had applied within the monument.1 Unlike the parallel Pacific action — where, as of late June 2026, implementing regulations had not yet issued and commercial fishing therefore remained formally prohibited — the Atlantic rulemaking is complete. That distinction is what separates this file's status from the "rulemaking pending" status at /sites/pacific-marine-monuments/.2

Proclamation 11009 is one link in a chain of four proclamations opening marine national monuments to commercial fishing: PP 10918 (April 17, 2025, Pacific Islands Heritage), PP 11009 (February 6, 2026, this monument), and PP 11035 (June 11, 2026, Mariana Trench, Papahānaumokuākea, and Rose Atoll).2

03 — Documented Impact: Environmental

Not yet documented — a species, habitat, or deep-sea-ecosystem assessment specific to this monument and to the reopening has not been compiled for this page. The monument protects submarine canyons and seamounts; the underlying scientific record supporting the original designation has not been retrieved and is not summarized here.

03 — Documented Impact: Cultural & Archaeological

Not yet documented.

03 — Documented Impact: Economic & Fiscal

Not yet documented — no projected harvest value, fleet composition, or offsetting cost figure specific to this monument has been identified in current sourcing.

03 — Documented Impact: Legal Status

Litigation status not confirmed as of August 17, 2026. No docket challenging Proclamation 11009 or NOAA's April 6, 2026 final rule has been identified in current sourcing. This is an open research question, not a finding that no challenge exists.

For context, the parallel Pacific action drew a successful Administrative Procedure Act challenge: in Kāpaʻa v. Trump, No. 1:25-cv-00209 (D. Haw.), the court vacated an NMFS letter opening the Pacific Islands Heritage monument for lack of notice-and-comment. NOAA's Atlantic action proceeded by published final rule rather than by letter, which distinguishes it procedurally from the action vacated there.3

03 — Documented Impact: Human Health

Not applicable in the direct sense — this is a fishing-access policy change rather than a construction or extraction project.

03 — Tribal / Public Consultation Status

Not yet documented — the public-comment record for NOAA's April 6, 2026 final rule, and any tribal or community consultation associated with it, has not been retrieved for this page.

04 — Named Companies & Responsible Parties

05 — Recorded Opposition & Support

06 — Timeline of Developments

07 — Sources

Primary

Secondary

Corrections Log

None on record as of 2026-08-17 (case file opened). This page is deliberately incomplete: the historical record, environmental impact, economic impact, and consultation sections are labeled "not yet documented" rather than filled, and the litigation section records that no challenge has been identified rather than that none exists.

Take Action

NOAA's implementing rule was published as a final rule on April 6, 2026; no open federal comment period is on record for this monument as of last verification.

Sign / comment on the public record for Northeast Canyons and Seamounts Marine National Monument →