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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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Maximum dependable capacity (net)

Maximum dependable capacity (net) … The gross maximum dependable capacity of the main generating unit in a nuclear power reactor, minus the amount used to operate the station. Net maximum dependable capacity is measured in watts unless otherwise noted. … …

Maximum dependable capacity (gross)

Maximum dependable capacity (gross) … The maximum amount of electricity that the main generating unit of a nuclear power reactor can reliably produce during the summer or winter (usually summer, but whichever represents the most restrictive seasonal …

Low population zone (LPZ)

Low population zone (LPZ) … An area of low population density often required around a nuclear installation before it's built. The number and density of residents is of concern in emergency planning so that certain protective measures (such as notification …

Loss of coolant accident (LOCA)

Loss of coolant accident (LOCA) … A potential accident in which a breach in a reactor’s pressure boundary causes the coolant water to rush out of the reactor faster than makeup water can be added back in. Without sufficient coolant, the reactor core could …

Linear heat generation rate

Linear heat generation rate … The heat generation rate per unit length of fuel rod, commonly expressed in kilowatts per foot (kw/ft) of fuel rod. … Linear heat generation …

Limiting safety system settings

Limiting safety system settings … Settings for automatic protective devices related to those variables having significant safety functions. Where a limiting safety system setting is specified for a variable on which a safety limit has been placed, the …

Idealized through-wall crack

Idealized through-wall crack … A planar crack that extends from the inside surface of a piping component to the outside surface with equal radial inner and outer lengths. … Idealized through-wall …

U.S. Environmental Protection Agency (EPA)

U.S. Environmental Protection Agency (EPA) … The Federal agency responsible for protecting human health and safeguarding the environment. EPA leads the Nation’s environmental science, research, education, and assessment efforts to ensure that attempts to …

Federal Energy Regulatory Commission (FERC)

Federal Energy Regulatory Commission (FERC) … An independent agency that regulates the interstate transmission of electricity, natural gas, and oil. FERC also regulates and oversees hydropower projects, and the construction of liquefied natural gas …