United States Nuclear Regulatory Commission - Protecting People and the Environment

Region IV Jurisdiction

Map of NRC Region IV Alaska Hawaii Region IV Location California Nevada Idaho Utah Oregon Montana North Dakota South Dakota Nebraska Kansas Wyoming Colorado Arizona New Mexico Oklahoma Arkansas Louisiana Texas Washington State Region IV Location

U.S. NRC Region IV
1600 E. Lamar Blvd.
Arlington, TX 76011

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Area Covered by Region IV

Alaska (AK), Arizona (AZ)*, Arkansas (AR)*, California (CA)*, Colorado (CO)*, Hawaii (HI), Idaho (ID), Kansas (KS)*, Louisiana (LA)*, Missouri (MO), Montana (MT), Nebraska (NE)*, Nevada (NV)*, New Mexico (NM)*, North Dakota (ND)*, Oklahoma (OK)*, Oregon (OR)*, South Dakota (SD), Texas (TX)*, Utah (UT)*, U.S. Pacific Territories, Washington (WA)*, and Wyoming (WY).

Region IV also oversees the Grand Gulf plant in Mississippi (MS), which is part of  Region II and Callaway plant in Missouri, MO, which is part of Region III. Region II oversees the Region IV commercial nuclear fuel processing facilities in NM and WA.

* 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 IV

Nuclear Power Reactors: 21 (located at 14 sites)
Research and Test Reactors: 17
Fuel Facilities:  
Major Facilities
1
Uranium Milling Facilities
26
Page Last Reviewed/Updated Monday, June 16, 2014