NRC: Oklo Reactor Fuel Still Unproven, No Green Light Granted

NRC memo shows Oklo still facing major unanswered questions on reactor fuel, no approvals granted

The Nuclear Regulatory Commission released a memo summarizing a meeting with Oklo about the nuclear fuel they want to use in their proposed Aurora reactor. This was not an approval. Nothing was authorized. No green light was given.

What did happen is the NRC told Oklo they still have significant gaps between the fuel design they’re proposing and proven, real-world operating data. Oklo is trying to rely on legacy fuel information and wants flexibility to change fuel designs later without having to go through full re-review each time.

The NRC pushed back. Regulators said the company needs to clearly address those data gaps and provide more complete information before any licensing decisions can move forward.

It’s also worth noting that part of this meeting was closed to the public because Oklo claims the information is proprietary.

Bottom line: this memo confirms that Oklo’s fuel is not qualified, the reactor is not approved, and federal regulators are nowhere near signing off. This is still early-stage review, not deployment.

This is exactly why oversight matters — especially when companies are pitching “advanced” nuclear tech while asking regulators to relax standards.

NRC LINK: NRC MEMO TO OKLO