Document: NUREG-0800
Document ID: f03d2c71-27a1-41fd-9362-1e62c6142e13
Document Type: srp
Title: Containment Systems and Severe Accidents (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070653.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.11
CFR Part: 
CFR Title: 

Content:
ereby standard designs are approved by rulemaking. The resulting design certification rule is added to 10 CFR 52 as an appendix. Each appendix incorporates by reference a design control document (DCD) that contains the design information. An applicant for design certification is required to submit a DCD to the NRC for review and approval. A combined license applicant or licensee who references a certified design must comply with both the rule certifying the design and the DCD. The following terms were defined for the evolutionary design reviews: Generic design control document (generic DCD) means the document that contains the generic Tier 1 and Tier 2 information that is incorporated by reference into the design certification rules. This document is prepared by the applicant for design certification. Plant-specific DCD means the document, maintained by an applicant or licensee who references a design certification rule, consisting of the information in the generic DCD, as modified and supplemented by the plant-specific departures and exemptions made under the change process in the design certification rule. The plant-specific DCD is prepared by an applicant for a combined license that references the rule and will be effective for the life of a facility. Tier 1 means the portion of the design-related information contained in the generic DCD that is approved and certified by this design certification rule (hereinafter Tier 1 information). The design descriptions, interface requirements, and site parameters are derived from Tier 2 information. Tier 1 information includes: (1) Definitions and general provisions; (2) Design descriptions; (3) Inspections, tests, analyses, and acceptance criteria (ITAAC); (4) Significant interface requirements; and (5) Significant site parameters. Tier 2 means the portion of the design-related information contained in the generic DCD that is approved but not certified by this design certification rule (hereinafter Tier 2 information).