Document: NUREG-0800
Document ID: f5fcd424-bea6-4f79-b002-f91d93dd4c9e
Document Type: srp
Title: QUALITY ASSURANCE PROGRAM DESCRIPTION - DESIGN CERTIFICATION,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190019.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.5
CFR Part: 
CFR Title: 

Content:
the item modified and retested or otherwise verified to ensure satisfactory performance. When tests are being performed on models or mockups, scaling laws are required to be established and verified. The results of model test work are subject to error analysis, where applicable, prior to use in final design work. (NQA-1) e. Design verification is completed before design outputs are used by other organizations for design work and before they are used to support other activities such as procurement, manufacture, or construction. When this timing cannot be achieved, the unverified portion of the design is identified and controlled. In all cases, the design verification is completed before relying on the item to perform its intended function. (NQA-1) f. The verifying or checking process is performed by individuals or groups other than those who performed the original design, but who may be from the same organization. The designer's immediate supervisor can perform the design verification provided the supervisor did not specify a singular design approach or rule out certain design considerations and did not establish the design inputs used in the design; or the supervisor is the only individual in the organization competent to perform the verification. (NQA-1) 17.5-13 March 2007 g. Whenever changes to previously verified designs are made, design verification is required for the changes, including evaluation of the effects of those changes on the overall design and on any design analyses upon which the design is based that are affected by the change to a previously verified design. (NQA-1) h. The verification process need not be duplicated for identical designs. However, the applicability of standardized or previously proven design, with respect to meeting pertinent design inputs, is verified for each application. The original design and associated verification measures are documented in records for subsequent application of the design. (NQA-1) D. PROCUREMENT DOCUMENT