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Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

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Region I Jurisdiction

Map of NRC Region IConnecticut DelawareDistrict of ColumbiaMaineMarylandMassachusettsNew HampshireNew JerseyNew YorkPennsylvaniaRhode IslandVermontRegion 1 LocationDelawaremaryland

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 Tuesday, August 12, 2025

Page Last Reviewed/Updated Tuesday, August 12, 2025