Primer

National space-resource law

Four states have legislated ownership of what is mined. None has legislated ownership of where it is mined.

Between 2015 and 2021 the United States, Luxembourg, the United Arab Emirates, and Japan each enacted domestic law recognizing private property in recovered space resources. The statutes differ in who qualifies, how activity is licensed, and how loudly they disclaim sovereignty — but all four stop at the same line: title attaches on recovery, and nothing is said about the deposit in the ground.

At a glance

States with a statute: Four
The common rule: Title on recovery
The common disclaimer: No sovereignty asserted
Who may hold title: Varies sharply
What none of them do: Tenure or a registry

The four statutes

Six years separate the first from the last. Read in order, they show a drafting problem being solved four times over, with steadily more regulatory machinery around the same one-line property recognition.

Signed 25 November 2015

United States

US Commercial Space Launch Competitiveness Act, Title IV (Space Resource Exploration and Utilization Act), 51 U.S.C. §§51301–51303

Scope: Asteroid resources and space resources generally — abiotic resources in situ in outer space, including water and minerals. Expressly excludes biological life.
Title clause: A US citizen engaged in commercial recovery 'shall be entitled to any asteroid resource or space resource obtained, including to possess, own, transport, use, and sell' it, in accordance with applicable law and US international obligations (§51303).
Licensing: No dedicated mining license was created. Authorization runs through existing FAA launch and re-entry licensing and the Article VI supervision framework; §51302 directs the President to facilitate commercial recovery and discourage government barriers.
Who qualifies: US citizens, and entities organised under US law or foreign entities with a controlling US interest.
Sovereignty disclaimer: §403: the United States 'does not thereby assert sovereignty or sovereign or exclusive rights or jurisdiction over, or the ownership of, any celestial body'.
What is distinctive: The statute confers a domestic entitlement against other US persons and US courts. It says nothing enforceable against a non-US operator, and Congress deliberately left the international question to be settled elsewhere.

In force 1 August 2017

Luxembourg

Law of 20 July 2017 on the exploration and use of space resources, as supplemented by the Law of 15 December 2020 on space activities

Scope: Space resources generally, without an asteroid-specific carve-out. The 2020 law added a full authorization and supervision regime for all space activities.
Title clause: Article 1, in a single sentence: 'Space resources are capable of being appropriated.' The shortest and boldest clause of the four.
Licensing: Articles 2–4 require prior written authorization from the ministers responsible for the economy and for space activities, granted mission by mission, with continuing supervision, financial-soundness and governance tests, and a duty to maintain a Luxembourg registered office and central administration.
Who qualifies: Any company in an eligible corporate form established in Luxembourg — deliberately open to foreign founders willing to incorporate there.
Sovereignty disclaimer: The travaux and the government's accompanying commentary state the law grants no rights over any celestial body or territory; the object is the resource, not the place.
What is distinctive: Explicitly designed as industrial policy. Luxembourg paired the law with equity investment and the Luxembourg Space Agency to attract operators, making it the first jurisdiction anywhere to legislate the point directly rather than as one title in a larger act.

Issued 19 December 2019

United Arab Emirates

Federal Law No. 12 of 2019 on the Regulation of the Space Sector, with implementing resolutions from the UAE Space Agency

Scope: The whole space sector — launch, operation, registration, liability insurance, human spaceflight — with space resources treated as one licensable activity among many (Article 18).
Title clause: Article 18 permits exploration, exploitation, and use of space resources, including their acquisition, purchase, sale, trade, transport, storage, and any activity relating to them, subject to permit and to the UAE's international obligations.
Licensing: A single permitting authority — the UAE Space Agency — issues activity-specific permits with conditions, insurance minimums, environmental and debris-mitigation requirements, and penalties for unpermitted activity.
Who qualifies: Any person or entity conducting space activity in, from, or under the jurisdiction of the UAE, including foreign operators using UAE facilities.
Sovereignty disclaimer: The law is framed as implementing the UAE's obligations under the Outer Space Treaty and the Registration and Liability Conventions; no sovereignty over any celestial body is asserted.
What is distinctive: The most regulatory of the four. It reads as a licensing code with a resource clause inside it, rather than a property statute — reflecting Article VI supervision more than Article II avoidance.

Promulgated 23 June 2021, in force 23 December 2021

Japan

Act on the Promotion of Business Activities for the Exploration and Development of Space Resources (Act No. 83 of 2021)

Scope: Business activities for exploration and development of space resources — water, minerals, and other natural resources in space, including on the Moon and other celestial bodies.
Title clause: Article 5: a person who has extracted space resources in accordance with an approved business activity plan acquires ownership of those resources. Title follows the permit and the plan.
Licensing: Approval is granted under the existing Space Activities Act licensing structure: the applicant files a business activity plan specifying the resources, the method, and the period and area of operation; the plan is approved by the Prime Minister with the Cabinet Office, and approved plans are made public.
Who qualifies: Holders of a Japanese space-activity license — in practice Japanese-registered operators.
Sovereignty disclaimer: The Act is expressly to be applied consistently with the Outer Space Treaty; the Diet record ties it to the Artemis Accords position that extraction is not national appropriation.
What is distinctive: The only one of the four that publishes the operating area and period in the approved plan — the closest thing yet to a public record of who is working where, and a plausible seed for the registry the international system lacks.

Clause by clause

The same nine questions put to each statute. The first row is where they agree; the second is where the whole financing problem lives.

Question	United States	Luxembourg	UAE	Japan
Ownership of extracted resources	Yes — possess, own, transport, use, sell (§51303)	Yes — resources are capable of appropriation (Art. 1)	Yes — acquisition, purchase, sale, trade permitted (Art. 18)	Yes — ownership on extraction under an approved plan (Art. 5)
Rights in resources still in the ground	Not granted	Not granted	Not granted	Not granted
Territorial or surface rights	Expressly disclaimed (§403)	Expressly excluded in the commentary	None; framed as OST-compliant	None; OST-consistency clause
Dedicated license for resource activity	No — folded into FAA launch authorization	Yes — ministerial mission authorization	Yes — Space Agency permit (Art. 18)	Yes — approved business activity plan
Who may qualify	US citizens and US-controlled entities	Any company established in Luxembourg	Any operator under UAE jurisdiction	Japanese-licensed operators
Operating area made public	No	No	No	Yes — area and period in the published plan
Priority between rival operators	Silent	Silent	Silent	Silent; overlapping plans handled administratively
Recognition by other states	Not addressed	Pursued through bilateral MOUs	Not addressed	Not addressed; Accords-aligned
Security interest a lender could perfect	Over recovered material only	Over recovered material only	Over recovered material only	Over recovered material only

What they settle

Extracted material can be owned, and traded

Four independent legislatures, on three continents, reached the same conclusion: a company that recovers water or regolith in space owns what it recovers and may sell it. The convergence matters more than any single statute — it is the beginning of state practice.

51 U.S.C. §51303; Luxembourg Law 2017 Art. 1; UAE Federal Law 12/2019 Art. 18; Japan Act 83/2021 Art. 5

Domestic authorization is the delivery mechanism

Every regime hangs on Article VI of the Outer Space Treaty: the state authorizes and continuously supervises, and the property recognition rides on the license. That is the legal architecture available today, and it works within the treaty rather than against it.

Outer Space Treaty Art. VI; national licensing provisions

No state has claimed territory

Each statute contains an explicit or recorded disclaimer of sovereignty. Whatever critics say about the direction of travel, no legislature has crossed the line Article II draws.

CSLCA §403 and equivalents

What they do not settle

Nothing binds anyone outside the enacting state

A US entitlement is good against US persons in US courts. It is not good against a Chinese or Indian operator working the same crater. Domestic statutes multiply claims of right without creating a rule that resolves conflicts between them.

Territorial limits of national legislation

The deposit before extraction remains unowned and unallocated

Every statute is careful to attach title at the moment of recovery. That protects the enacting state from an Article II objection, and it leaves the commercially decisive question — who may work this ice, for how long, to the exclusion of whom — entirely unanswered.

Silence common to all four instruments

There is nothing to record and nothing to finance against

Reserve-based lending needs a recorded, transferable, exclusive interest in a defined area. None of the four creates one. Japan's published operating area is the closest approximation and it is a permit condition, not a property right.

Absence of a tenure register in all four regimes

Overlap and interference are administrative, not adjudicable

Where two licensees of the same state collide, a ministry decides. Where licensees of different states collide, there is no forum at all — only the Outer Space Treaty's duty to consult between governments.

Outer Space Treaty Art. IX; no dispute clause in any national act

Criticism

The Russian and G-77 objection

Russia called the 2015 US Act a unilateral appropriation of the commons, and several developing states have argued in COPUOS that resource legislation should await a multilateral regime. The counterargument is that Article VI contemplates exactly this — states authorizing their nationals — and that a state which licenses extraction has appropriated nothing.

Flag-of-convenience risk

Luxembourg and the UAE both welcome foreign founders who incorporate locally. If title depends on where you register, operators will register wherever the recognition is broadest and the supervision lightest — the same dynamic that produced open shipping registries, with the same regulatory consequences.

Legislating the easy half

Extraction was never seriously contested; the Apollo and Luna samples settled it in practice decades ago. Four statutes confirming the uncontested point, while all four decline the contested one, is evidence that in-situ tenure cannot be solved domestically at all.

Convergence as emerging custom

The optimistic reading is that four consistent statutes plus seventy-one Artemis signatories plus unprotested state practice is how customary international law forms. The pessimistic reading is that custom formed by the states with rockets, over the objection of those without, tends to be contested for a long time.

Open questions

Could mutual recognition substitute for a treaty?

If the four enacting states — and the wider Artemis group — agreed to recognize each other's licenses and published operating areas, the result would function as tenure without anyone owning territory. It would need a shared register and a conflict rule, and nothing in the existing statutes prevents either.

What does an operating area have to be to be bankable?

Defined coordinates, a fixed term, exclusivity against later entrants, transferability, and a record a security interest can attach to. Japan supplies the first two. The rest is unwritten in every jurisdiction.

Who legislates next, and does divergence set in?

India, Australia, and several EU member states have resource provisions under discussion. The window in which four broadly compatible statutes can be harmonised into one practice is narrower than it looks; twenty divergent statutes would be worse than none.

Does a license survive the licensor's change of policy?

Every one of these entitlements is a creature of domestic statute and can be amended by the next legislature. Capital committed for a twenty-year lunar program is exposed to a political risk no purely national instrument can retire.

Why it matters here

National legislation is the part of the system that is actually working. Four states found a way to recognize property in space resources without touching sovereignty, and no state has been able to show a treaty violation in any of them.

It is also where the limit becomes obvious. A statute can tell you who owns the ice once it is in the tank. It cannot tell a lender who is entitled to work the crater for the next twenty years, because no legislature has jurisdiction to say so. That is the gap the paper is written to close.

Read the OST primer Read the Artemis primer Sign the document

Sources

[1]US Commercial Space Launch Competitiveness Act, Pub. L. 114-90, Title IV, 25 November 2015; codified at 51 U.S.C. §§51301–51303, with the sovereignty disclaimer at §403.
[2]Luxembourg, Law of 20 July 2017 on the exploration and use of space resources (Mémorial A No. 674), Articles 1–4; Law of 15 December 2020 on space activities.
[3]United Arab Emirates, Federal Law No. 12 of 2019 on the Regulation of the Space Sector, Article 18 and implementing UAE Space Agency resolutions.
[4]Japan, Act on the Promotion of Business Activities for the Exploration and Development of Space Resources, Act No. 83 of 2021, Articles 2–5; in force 23 December 2021.
[5]Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, 610 UNTS 205 (1967), Articles II, VI, and IX.
[6]The Artemis Accords, adopted 13 October 2020, Section 10 (space resources).
[7]UN Committee on the Peaceful Uses of Outer Space, Legal Subcommittee, working group on legal aspects of space resource activities — records of the debate on national legislation.

This primer is explanatory support material for the paper. It is not legal advice.