Deep-sea mining has transitioned from environmental debate to jurisdictional competition.

For three decades, regulatory authority over seabed minerals beyond national waters has centered on the United Nations system under the International Seabed Authority. In 2025, the United States formally activated its own statutory pathway under domestic law.

The result is a bifurcated regulatory landscape with material implications for capital formation, permitting timelines and geopolitical risk.

1980

United States Establishes a Domestic Seabed Mining Code

The U.S. Congress enacted the Deep Seabed Hard Mineral Resources Act. DSHMRA authorizes the federal government to issue:

Exploration licenses
Commercial recovery permits
Environmental and operational regulations

The statute applies to U.S.-controlled entities operating in international waters.

For decades, DSHMRA remained inactive as industry pursued multilateral legitimacy through the UN framework. That is no longer the case.

1982

UNCLOS Creates the International Seabed Authority

The UN Convention on the Law of the Sea designated seabed resources beyond national jurisdiction as the “common heritage of mankind” and created the International Seabed Authority to regulate exploration and exploitation.

Under the ISA system:

Contractors must be sponsored by a member state.
Financial payments are designed to support global benefit-sharing.
Exploitation regulations must be adopted before commercial mining begins.

The United States signed but never ratified UNCLOS and therefore does not participate in the ISA as a member state.

2001 to 2020

ISA Issues Exploration Contracts, But No Exploitation Code

The ISA issued more than 30 exploration contracts in the Clarion-Clipperton Zone. Contractors gathered environmental baseline data and conducted pilot collection tests.

However, commercial production required finalized Exploitation Regulations. Drafting those rules proved politically sensitive and technically complex.

Capital markets took note: regulatory uncertainty limited project financing beyond early-stage equity.

2021

Nauru Triggers Regulatory Acceleration

Nauru invoked a UNCLOS provision commonly referred to as the “two-year rule,” compelling the ISA to finalize exploitation regulations or begin reviewing applications under provisional terms.

The move intensified global debate around:

Environmental risk thresholds
Royalty structures
Inspection and compliance regimes
Moratorium proposals

Despite this acceleration, full exploitation regulations remained incomplete entering 2025.

2022 to 2024

National Jurisdictions Expand Seabed Policy

Parallel to ISA negotiations, sovereign states advanced their own seabed mineral frameworks within Exclusive Economic Zones.

This included:

Exploration licensing in the Cook Islands
Arctic seabed policy initiatives in Norway

These developments demonstrated that seabed mineral governance could evolve through national systems independent of the ISA.

April 2025

United States Activates DSHMRA

In April 2025, the U.S. President issued an Executive Order designating seabed minerals as critical to national and energy security.

The Order directed federal agencies to:

Expedite seabed mining permit reviews
Evaluate stockpiling and offtake mechanisms
Assess federal financing and strategic support

Shortly thereafter, TMC USA submitted the first commercial recovery permit application under DSHMRA, along with two exploration license applications.

This event marked a structural shift.

For the first time, commercial seabed mining moved from theoretical multilateral approval to active review under a U.S. statutory framework.

Two Regulatory Tracks Now Compete

As of 2025, deep-sea mining operates under two distinct legal systems.

1. The ISA / UN Framework

Multilateral governance
State sponsorship requirement
Revenue redistribution model
Exploitation regulations still pending

Advantages:

Global legitimacy
Broad international recognition

Constraints:

Political negotiation risk
Slower regulatory cadence
Exposure to moratorium campaigns

2. The U.S. DSHMRA Framework

Domestic statutory authority
NOAA-administered permitting
No ISA dependency
Commercial recovery applications now filed