State of Wyoming: Discontinuance of Certain Commission Regulatory Authority Within the State; Notice of Amended Agreement Between the NRC and the State of Wyoming

What it does

This notification is announcing that on April 20, 2026, Ho K. Nieh, Chairman of the U.S. Nuclear Regulatory Commission (NRC or Commission), and on April 21, 2026, Governor Mark Gordon of the State of Wyoming, signed an amended Agreement as authorized by Section 274b. of the Atomic Energy Act of 1954, as amended (AEA). Under the amended Agreement, the Commission discontinues its regulatory authority, and the State of Wyoming assumes regulatory authority over source material recovered from any mineral resources processed primarily for purposes other than its uranium or thorium content. Wyoming's initial Agreement allowed the State to assume regulatory authority over byproduct material as defined in section 11e.(2) of the AEA, and source material involved in the extraction or concentration of uranium or thorium in source material and ores at milling facilities.

The Nuclear Regulatory Commission's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 10 of the Code of Federal Regulations:

10 CFR 150

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Nuclear Regulatory Commission has published 34 final rules in 2026 so far, compared with 28 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

What happens next and when

The effective date of the amended Agreement is April 30, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket NRC-2025-2062 on Regulations.gov
• Title 10 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register