Document: 10 CFR Part 50
Document ID: 8be1921b-1780-46ef-ae65-4def3ed80dd3
Document Type: cfr
Title: License required; limited work authorization.
Source: 10 CFR Part 50
Source URL: https://www.ecfr.gov/current/title-10/part-50/section-50.10
Revision Date: 
Chapter: 
Section ID: 50.10
CFR Part: 50
CFR Title: 10

Content:
§ 50.10 License required; limited work authorization. ( a ) Definitions. As used in this section, construction means the activities in paragraph (a)(1) of this section, and does not mean the activities in paragraph (a)(2) of this section. ( 1 ) Activities constituting construction are the driving of piles, subsurface preparation, placement of backfill, concrete, or permanent retaining walls within an excavation, installation of foundations, or in-place assembly, erection, fabrication, or testing, which are for: ( i ) Safety-related structures, systems, or components (SSCs) of a facility, as defined in 10 CFR 50.2 ; ( ii ) SSCs relied upon to mitigate accidents or transients or used in plant emergency operating procedures; ( iii ) SSCs whose failure could prevent safety-related SSCs from fulfilling their safety-related function; ( iv ) SSCs whose failure could cause a reactor scram or actuation of a safety-related system; ( v ) SSCs necessary to comply with 10 CFR part 73 ; ( vi ) SSCs necessary to comply with 10 CFR 50.48 and criterion 3 of 10 CFR part 50, appendix A ; and ( vii ) Onsite emergency facilities necessary to comply with either § 50.160 or § 50.47 and appendix E to this part, as applicable. ( 2 ) Construction does not include: ( i ) Changes for temporary use of the land for public recreational purposes; ( ii ) Site exploration, including necessary borings to determine foundation conditions or other preconstruction monitoring to establish background information related to the suitability of the site, the environmental impacts of construction or operation, or the protection of environmental values; ( iii ) Preparation of a site for construction of a facility, including clearing of the site, grading, installation of drainage, erosion and other environmental mitigation measures, and construction of temporary roads and borrow areas; ( iv ) Erection of fences and other access control measures; ( v ) Excavation; ( vi ) Erection of support buildings (such as,