Buying uranium without a license is legal in the United States as long as it is unprocessed, unrefined natural ore. Federal regulations exempt raw ore from licensing entirely, which is why mineral dealers and online retailers can sell uranium specimens to anyone. The moment uranium is refined, enriched, or held in larger processed quantities, licensing rules kick in, and the penalties for ignoring them are serious.
What You Can Buy With No License At All
Under 10 CFR 40.13(b), any person may receive, possess, use, or transfer unrefined and unprocessed ore containing source material without a license. There is no weight cap on this exemption. A collector can keep a shelf, a drawer, or a garage full of uranium ore specimens and remain fully within federal law, provided the ore stays in its natural state. The single condition is that you cannot refine or process the ore without specific NRC authorization.
This is why uranium ore samples are openly for sale. The rock is mildly radioactive, but small specimens stored properly pose minimal risk, and the law treats them the way it treats any other mineral. Gloves, sealed containers, no dust, no food nearby: standard mineral-collecting practice covers it.
Where the Legal Line Sits
The Atomic Energy Act of 1954 splits uranium into two categories, and everything about what you can buy flows from which side of the line the material falls on.
Source material means natural uranium, depleted uranium, thorium, and ores containing these elements at 0.05 percent or more by weight. Uranium ore, yellowcake, and natural uranium metal live here. Source material generally requires a license to transfer or receive once it has been removed from its natural deposit, but the law carves out real exemptions for unprocessed ore and small quantities.
Special nuclear material means plutonium, uranium-233, or uranium enriched above its natural concentration of about 0.711 percent uranium-235. This is reactor fuel and weapons-grade material. No person may own, possess, transfer, or receive any amount of it without a specific or general license from the Nuclear Regulatory Commission. There is no exempt quantity. Enriched uranium is not something a private individual can lawfully buy.
The reason for the split is physics. Enriched uranium can sustain a chain reaction; natural uranium cannot. Regulators treat the two accordingly.
Small Processed Quantities Under a General License
Once uranium has been processed but remains in natural or depleted isotopic concentration, a general license under 10 CFR 40.22 lets individuals and organizations possess limited amounts for research, educational, commercial, or operational use. The caps depend on the physical form:
- Dispersible forms such as powder, liquid, or gas: no more than 1.5 kg (3.3 lb) at any one time, and no more than 7 kg (15.4 lb) received in a calendar year.
- Non-dispersible forms such as solid metal or sealed sources: no more than 7 kg (15.4 lb) at any one time, and no more than 70 kg (154 lb) received in a calendar year.
A general license is automatic. You do not apply, and no one approves you. But conditions attach: you cannot administer the material to humans, you must keep it in a controlled setting, and you remain subject to NRC inspection. Schools use this route to acquire small uranium samples for teaching demonstrations without going through a full specific-license process.
When a Specific License Becomes Necessary
Beyond exempt ore and the general license caps, buying uranium requires a specific license. That includes anyone who wants to refine or process ore, hold source material above the general license thresholds, enrich uranium in any amount, or run a facility that handles nuclear material commercially.
The application is not a formality. Applicants have to show technical expertise, physical security, and a radiation safety program. They have to track every gram of material from acquisition through disposal. And they have to post financial assurance for eventual decommissioning, usually through a trust account, surety bond, or letter of credit large enough to cover full site decontamination.
Special nuclear material sits under an even tighter regime, with additional physical security requirements, personnel reliability programs, and material control and accounting systems designed to detect diversion. The NRC coordinates with the International Atomic Energy Agency, which verifies through inspections, cameras, and radiation monitors that nuclear material in signatory countries stays on peaceful uses.
One geographic note. The NRC does not directly regulate source material in every state. Forty states are Agreement States, meaning they have taken over source material licensing and inspection from the NRC. The federal exemptions for unprocessed ore and small quantities still apply everywhere, but if you need a specific license, in most of the country you file with your state radiation control office instead of the NRC. Federal facilities and operations on tribal land stay under NRC jurisdiction regardless.
Depleted Uranium You Can Legally Own
Depleted uranium is a byproduct of enrichment. It is denser than lead and less radioactive than natural uranium, which makes it useful as ballast, counterweights, and radiation shielding. The rules for owning it fall between the raw ore exemption and full licensing.
Under 10 CFR 40.25, anyone may possess depleted uranium contained in industrial products such as aircraft counterweights or shielding components under a general license, so long as the product was originally manufactured under a specific NRC license. The owner must file NRC Form 244 within 30 days of first receiving the material, cannot chemically or metallurgically process it (minor repairs aside), and cannot abandon it.
A narrower exemption at 10 CFR 40.13(c)(6) covers depleted uranium used as shielding inside shipping containers. The container must be marked “CAUTION—RADIOACTIVE SHIELDING—URANIUM,” and the uranium must be encased in steel or an equally fire-resistant metal at least one-eighth inch thick.
Shipping What You Bought, and Why You Cannot Export It
Legally buying ore is not the same as legally shipping it. The Department of Transportation classifies uranium ore as a Class 7 radioactive material. Small quantities qualify for an excepted package designation under 49 CFR 173.421, which relaxes some labeling and documentation, but the outer packaging still has to be marked “Radioactive,” and surface radiation cannot exceed 0.5 millirem per hour.
Exports are far stricter. Under 10 CFR Part 110, an NRC license is required to export any source material or special nuclear material from the United States. Natural uranium ore included. This reflects U.S. nonproliferation commitments and applies to individuals and companies alike. Depleted uranium built into industrial products for its density or pyrophoric properties falls under Department of Commerce export controls instead, but still requires authorization.
Penalties If You Cross the Line
Unauthorized handling of special nuclear material or violation of NRC licensing requirements under the Atomic Energy Act carries a fine of up to $10,000, imprisonment for up to ten years, or both. A violation committed with intent to harm the United States or benefit a foreign nation raises the ceiling to a potential life sentence and a $20,000 fine.
Violations involving the production or use of atomic weapons carry a mandatory minimum of 25 years and fines up to $2 million. If someone dies as a result, the sentence is life imprisonment.
On the civil side, the NRC can impose penalties of up to $100,000 per violation for breaching licensing requirements, a figure that is periodically adjusted for inflation. Unauthorized disclosure of restricted nuclear data by current or former government employees or contractors is separately punishable by a fine of up to $12,500.
The criminal provisions target people who knowingly work around the regulatory system. A mineral collector with a few ore specimens is not the target. Enforcement is aimed at diversion of enriched material, unlicensed commercial operations, and espionage.
Health Precautions for Ore Buyers
Natural uranium ore is mildly radioactive, but for small specimens kept at a distance, the radiation dose is negligible. The bigger concern with uranium is chemical toxicity. Soluble uranium compounds damage kidney tubular cells, and chronic inhalation of insoluble uranium compounds can harm the respiratory tract. The Agency for Toxic Substances and Disease Registry has also identified reproductive effects as a potential concern.
For collectors, the practical risks are manageable. Store specimens in sealed containers, handle them with gloves, avoid generating or breathing dust, and keep them away from areas where food is prepared. Real occupational exposure sits with miners and industrial workers handling processed uranium in dispersible forms over long periods, which is one reason NRC licensing imposes radiation safety programs on anyone working with more than exempt quantities.