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The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Home Facility Locator Facilities by NRC Region or State

Region I Jurisdiction

Map of NRC Region IConnecticut Delaware District of Columbia Maine Maryland Massachusetts New Hampshire New Jersey New York Pennsylvania Rhode Island Vermont Region 1 Location Delaware maryland

U.S. NRC Region I
475 Allendale Rd., Suite 102
King of Prussia PA 19406-1415

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Area Covered by Region I

Connecticut, Delaware, Maine*, Maryland*, Massachusetts*, New Hampshire*, New Jersey*, New York*, Pennsylvania*, Rhode Island*, Vermont, and Washington, DC.

Region I also oversees materials licensees in Region II.

* These states are "Agreement States" which have assumed the regulation of radioactive materials with the exception of nuclear reactors, fuel facilities, and certain other facilities.

Types and Numbers of Licensees in Region I

Nuclear Power Reactors: 25 (located at 16 sites)
Research and Test Reactors: 8 (operating non-power reactors)
Uranium Milling Facilities: 0  

Page Last Reviewed/Updated Thursday, October 3, 2024