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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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Emergency Notification System

Emergency Notification System … A telephone system used by the NRC to receive notifications of significant nuclear events with an actual or potential effect on the health and safety of the public and the environment. Significant events are reported to the …

Site Additions in 2012

Site Additions in 2012 … On this page: December November October August July June May April March February January See also New on Our Site for current additions. December December 12, 2012 Special NRC Oversight at Seabrook Nuclear Power Plant: Concrete …

Categories of special nuclear material

Categories of special nuclear material …   The NRC groups special nuclear materials and the facilities that possess them into three categories based upon the materials’ potential for use in nuclear weapons or their “strategic significance”: Category I: …

National Response Framework

National Response Framework … The guiding principles, roles, and structures that enable all domestic incident response partners to prepare for and provide a unified national response to disasters and emergencies. It describes how the Federal Government, …

U.S. Department of Energy (DOE)

U.S. Department of Energy (DOE) … The Federal agency established by Congress to advance the national, economic, and energy security of the United States, among other missions. … U.S. Department of Energy …

Primary water stress-corrosion cracking (PWSCC)

Primary water stress-corrosion cracking (PWSCC) … A stress-corrosion cracking degradation mechanism to which certain materials used in nuclear power plant piping systems are susceptible. … Primary water stress-corrosion cracking …

Freedom of Information Act (FOIA)

Freedom of Information Act (FOIA) … A Federal law that requires Federal agencies to provide, upon written request, access to records or information. Some material is exempt from FOIA, and FOIA does not apply to records that are maintained by State and …

Differential pressure (dp or dP)

Differential pressure (dp or dP) … The difference in pressure between two points of a system, such as between the inlet and outlet of a pump. … Differential pressure (dp or …

Design-basis threat (DBT)

Design-basis threat (DBT) … A description of the type, composition, and capabilities of an adversary, against which a security system is designed to protect. The NRC uses the DBT as a basis for designing safeguards systems to protect against acts of …