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

Document 2025-18841 is a Final Rule published by the Nuclear Regulatory Commission in the Federal Register on September 29, 2025, with an effective date of September 30, 2025. This notice is announcing that on September 25, 2025, David A. Wright, Chairman of the U.S. Nuclear Regulatory Commission (NRC or Commission), and Governor Edward Miner Lamont, Jr. of the State of Connecticut, signed an Agreement as authorized by Section 274b. of the Atomic Energy Act of 1954, as amended (the Act). Under the Agreement, the Commission discontinues its regulatory authority, and the State of Connecticut assumes regulatory authority over 11e.(1), 11e.(3), and 11e.(4) byproduct materials, source materials, and special nuclear materials in quantities not sufficient to form a critical mass. View the original at https://www.federalregister.gov/documents/2025/09/29/2025-18841/state-of-connecticut-discontinuance-of-certain-commission-regulatory-authority-within-the-state.

No. Document 2025-18841 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.