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No. 20-97October Term 2020Decided Mar 22, 2021

Docket 20-97October Term 2020 (2020–2021)

Massachusetts Lobstermen's Assn. v. Raimondo

The immediate issue is whether the Supreme Court will step into a major fight over presidential power, ocean conservation, and commercial fishing access.

Case status

Current stage
Decided
Latest event
Decision released Mar 22, 2021
Case Accepted
Arguments
Decision ReleasedMar 22, 2021
What it's about

Commercial fishing groups challenged President Obama’s creation of the 3.2 million-acre Northeast Canyons and Seamounts Marine National Monument in the Atlantic, which restricted lobster and crab fishing in the area. The dispute centers on whether the Antiquities Act lets a President create such an offshore marine monument and whether this monument is larger than the statute allows.

Question presented

1. Whether the Antiquities Act lets a President create such an offshore marine monument? 2. Whether this monument is larger than the statute allows?

Case path

United States Court of Appeals for the District of Columbia Circuit / Decision released Mar 22, 2021

Area

Business and Regulation

Briefing

What it's about

Commercial fishing groups are asking the Supreme Court to take a fight over President Obama’s 3.2 million-acre Northeast Canyons and Seamounts Marine National Monument. They say the Antiquities Act may not allow an offshore marine monument of that size, especially one that restricts lobster and crab fishing.

Vote

The case is pending, and oral argument has not been scheduled. The fishing groups argue the Antiquities Act covers only certain federally owned or controlled land and that this 3.2 million-acre monument is larger than the statute allows.

Impact

The case could affect whether fishermen can return to parts of the monument area and how far presidents can go in setting aside ocean areas. That matters for lobster and crab businesses, coastal communities, and future marine conservation orders.

What's next

Watch for the Court to decide whether to hear the case and, if it does, to schedule oral argument. No decision window is available yet.

What is the core dispute in Massachusetts Lobstermen's Assn. v. Raimondo?

The fishing groups challenge the offshore monument under the Antiquities Act. They say the law may not authorize this kind of marine monument or one this large.

Who could feel the real-world effects of this case?

Lobster and crab fishermen could be directly affected because the monument restricts fishing in the area. Coastal businesses tied to that fishing could also feel the impact.

What should readers watch for next in this case?

The next key step is whether the Supreme Court grants certiorari, the Court's decision to hear the case. If it does, the next major milestone would be oral argument scheduling.

Decision

Decision record

What the Court decided

The immediate issue is whether the Supreme Court will step into a major fight over presidential power, ocean conservation, and commercial fishing access.

Impact

The case could affect whether fishermen can return to parts of the monument area and how far presidents can go in setting aside ocean areas. That matters for lobster and crab businesses, coastal communities, and future marine conservation orders.

Not official Court text.

Opinion documents

Timing

Decided March 22, 2021

The Court released its decision on March 22, 2021 without hearing oral argument.

Grounding

Grounding
Primary materials plus reporting.
Note
Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
Checked
Jul 2, 2026
Primary materials7
Context reporting2