Document: 10 CFR Part 50
Document ID: 95bb6c95-4469-43d8-aa77-b4d3038159b8
Document Type: cfr
Title: Definitions.
Source: 10 CFR Part 50
Source URL: https://www.ecfr.gov/current/title-10/part-50/section-50.2
Revision Date: 
Chapter: 
Section ID: 50.2
CFR Part: 50
CFR Title: 10

Content:
ctor coolant system extends to and includes the outermost containment isolation valve in the main steam and feedwater piping. Research and development means ( 1 ) theoretical analysis, exploration, or experimentation; or ( 2 ) the extension of investigative findings and theories of a scientific or technical nature into practical application for experimental and demonstration purposes, including the experimental production and testing of models, devices, equipment, materials, and processes. Responsible officer means, for the purposes of § 50.55(e) of this chapter , the president, vice-president, or other individual in the organization of a corporation, partnership, or other entity who is vested with executive authority over activities subject to this part. Restricted Data means all data concerning ( 1 ) design, manufacture, or utilization of atomic weapons; ( 2 ) the production of special nuclear material; or ( 3 ) the use of special nuclear material in the production of energy, but shall not include data declassified or removed from the Restricted Data category pursuant to section 142 of the Act. Safe shutdown (non-design basis accident (non-DBA)) for station blackout means bringing the plant to those shutdown conditions specified in plant technical specifications as Hot Standby or Hot Shutdown, as appropriate (plants have the option of maintaining the RCS at normal operating temperatures or at reduced temperatures). Safety-related structures, systems and components means those structures, systems and components that are relied upon to remain functional during and following design basis events to assure: ( 1 ) The integrity of the reactor coolant pressure boundary ( 2 ) The capability to shut down the reactor and maintain it in a safe shutdown condition; or ( 3 ) The capability to prevent or mitigate the consequences of accidents which could result in potential offsite exposures comparable to the applicable guideline exposures set forth in § 50.34(a)(1) or §