Regions of the Nuclear Regulatory Commission

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NRC regions and locations of nuclear reactors, 2008
Map of the NRC Regions

The Nuclear Regulatory Commission has divided the US territory into four regions:[1]

Region Regional Office Location Reactors NPP sites
Region I[2] King of Prussia, Pennsylvania North-east 25 16
Region II[3] Atlanta, Georgia South-east 33 17
Region III[4] Lisle, Illinois Northern mid-west 23 15
Region IV[5] Arlington, Texas Southern midwest and west 19 13
Total 100 61


These four regions oversee the operation of 104 power-producing reactors, and 36 non-power-producing reactors. This oversight is done on several levels, for example:

  • Each power-producing reactor site has Resident Inspectors, who monitor day-to-day operations
  • Numerous special inspection teams, with many different specialties, routinely conduct inspections at each site
  • Whistleblower reports are investigated by the Office of Enforcement, specifically the Allegations branch[6]

Region I[edit]

Map of Region I

Headquartered in King of Prussia, Pennsylvania, Region I oversees 15 plants in the north-eastern United States.




New Hampshire[edit]

New Jersey[edit]

New York[edit]


Region II[edit]

Map of Region II

Headquartered in Atlanta, Georgia, Region II oversees 18 plants in the south-eastern United States.




North Carolina[edit]

South Carolina[edit]



Region III[edit]

Map of Region III

Headquartered in Lisle, Illinois, Region III oversees 15 plants in the northern mid-western United States.







Region IV[edit]

Headquartered in Arlington, Texas, Region IV oversees 12 plants in the southern midwestern and the western United States.











Former regions[edit]

The NRC previously had five regions. Region V was headquartered in Walnut Creek, California and was responsible for activities in the seven far-west states: Alaska, Arizona, California, Hawaii, Nevada, Oregon and Washington. The NRC decided in September 1993 to consolidate Regions IV and V into a single Region headquartered in Arlington, Texas.[7] On April 4, 1994, NRC Region V was abolished, and the NRC Region IV office in Arlington, Texas was given expanded responsibilities to include the seven states formerly governed by Region V.[8][9] The former NRC Region V office in Walnut Creek remained open as the redesignated Walnut Creek Field Office, supporting resident inspection activities at power plants in the Pacific states of Washington, Oregon and California[8] until October 1, 1998, when the Walnut Creek Field Office was abolished to further reduce costs.[10][11][12][13]


  1. ^ "NRC: Locations".
  2. ^ "NRC: Region I Jurisdiction".
  3. ^ "NRC: Region II Jurisdiction".
  4. ^ "NRC: Region III Jurisdiction".
  5. ^ "NRC: Region IV Jurisdiction".
  6. ^ "NRC: Allegations".
  7. ^ "NRC to restructure regional functions in west; Walnut Creek to be Field Office" (PDF) (Press release). Washington D.C.: Nuclear Regulatory Commission. September 22, 1993. Retrieved December 3, 2014.
  8. ^ a b "NRC Administrative Letter 94-08: Consolidation of the NRC Region IV and Region V Offices" (PDF). Letter to "All holders of operating licenses or construction permits for nuclear reactors". July 13, 1994. Retrieved December 3, 2014.{{cite press release}}: CS1 maint: others (link)
  9. ^ "Consolidation of two NRC western Regions effective on April 4" (PDF) (Press release). Washington D.C.: Nuclear Regulatory Commission. March 30, 1994. Retrieved December 3, 2014.
  10. ^ Callan, L. Joseph (December 18, 1997). "Walnut Creek Field Office (WCFO) Closure Plan" (PDF). Letter to "The [NRC] Commissioners". Retrieved December 3, 2014.
  11. ^ "NRC to close California Field Office in 1998" (PDF) (Press release). Washington D.C.: Nuclear Regulatory Commission. September 5, 1997. Retrieved December 3, 2014.
  12. ^ "NRC California Field Office to close September 30" (PDF) (Press release). Arlington, Texas: Nuclear Regulatory Commission Region IV. September 23, 1998. Retrieved December 3, 2014.
  13. ^ "NRC Administrative Letter 98-08: Availability of Revised NRC Form 3, "Notice to Employees" and Closure of NRC Walnut Creek Field Office" (PDF). Letter to "All NRC licensees". October 9, 1998. Retrieved December 3, 2014.{{cite press release}}: CS1 maint: others (link)