§ 54.3 Definitions.
(a) As used in this part,
Current licensing basis (CLB) is the set
of NRC requirements applicable to a
specific plant and a licensee's written
commitments for ensuring compliance
with and operation within applicable
NRC requirements and the plant-specific
design basis (including all
modifications and additions to such
commitments over the life of the
license) that are docketed and in effect.
The CLB includes the NRC regulations
contained in 10 CFR parts 2, 19, 20, 21,
26, 30, 40, 50, 51, 52, 54, 55, 70, 72, 73,
100 and appendices thereto; orders;
license conditions; exemptions; and
technical specifications. It also includes
the plant-specific design-basis
information defined in 10 CFR 50.2 as
documented in the most recent final
safety analysis report (FSAR) as
required by 10 CFR 50.71 and the
licensee's commitments remaining in
effect that were made in docketed
licensing correspondence such as
licensee responses to NRC bulletins,
generic letters, and enforcement actions,
as well as licensee commitments
documented in NRC safety evaluations
or licensee event reports.
Integrated plant assessment (IPA) is a licensee assessment that demonstrates that a nuclear power plant facility's structures and components requiring aging management review in accordance with § 54.21(a) for license renewal have been identified and that the effects of aging on the functionality of such structures and components will be managed to maintain the CLB such that there is an acceptable level of safety during the period of extended operation.
Nuclear power plant means a nuclear power facility of a type described in 10 CFR 50.21(b) or 50.22.
Renewed combined license means a combined license originally issued under part 52 of this chapter for which an application for renewal is filed in accordance with 10 CFR 52.107 and issued under this part.
Time-limited aging analyses, for the purposes of this part, are those licensee calculations and analyses that:
(1) Involve systems, structures, and components within the scope of license renewal, as delineated in § 54.4(a);
(2) Consider the effects of aging;
(3) Involve time-limited assumptions defined by the current operating term, for example, 40 years;
(4) Were determined to be relevant by the licensee in making a safety determination;
(5) Involve conclusions or provide the basis for conclusions related to the capability of the system, structure, and component to perform its intended functions, as delineated in § 54.4(b); and
(6) Are contained or incorporated by reference in the CLB.
(b) All other terms in this part have the same meanings as set out in 10 CFR 50.2 or Section 11 of the Atomic Energy Act, as applicable.
[; 72 FR 49560, Aug. 28, 2007]