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Design and Construction Turnover
Chapter 2 Implementation Guidance for Operational Configuration Management
System Design Descriptions

As discussed in program criterion, a technical management review should be performed to
determine the adequacy of the facility design requirements and design basis. Judgments of adequacy
should be based on completeness, accuracy, and full documentation. The conclusions and the basis
for the conclusions regarding the adequacy of the facility design requirements and design basis should
be documented in the facility CM program plan. If the conclusion is that the design requirements and
their design basis are not fully documented, not complete, or not accurate, then they should be
reconstituted to the extent called for by the design reconstitution adjunct program.
This technical management review should identify the actions necessary to evaluate the current status of
facility design requirements and design basis. It should consider the results of applicable assessments,
especially the initial CM assessments. The completeness and accuracy of the facility design
requirements and basis is one of the most significant areas to be evaluated during the initial
assessments. By correlating the design basis with the design requirements and the design requirements
with the physical configuration and facility documentation, the vertical slice assessment can provide
unique insights into the completeness and accuracy of existing design requirements and basis, as well
as into the effectiveness of past and present CM practices.
If the initial assessments support a definitive conclusion regarding the adequacy of the facility design
requirement and design basis, no further activities may be necessary other than a review of the
assessment results by technical management. However, if the initial assessments do not support a
definitive conclusion, the management review should identify additional actions to supplement the
findings of the initial assessments. The technical management review should include technical
managers having broad design backgrounds and experience and representing the various design
disciplines. Several different approaches to this review are possible. Whichever approach or
combination of approaches is chosen, it should focus on whether any design information is missing.
The technical management review process may include the following methods of assessing
Comparisons with industry codes and standards that identify expected design information
Comparisons of like design requirements for comparable components
Comparisons of like design basis for comparable design requirements
Review of design information to identify SSCs with missing or incomplete information
Review of open items and discrepancies that have not been resolved
Review by independent, external, technical experts
In conjunction with the approaches listed above, a template approach may be used. A generic template
is prepared to identify the types of design requirements and design basis typical for a given SSC type.
The template is comprehensive and includes both the expected and possible design requirements and
design basis. The design requirements and design basis would be compared with the template to
identify missing requirements and design basis. For example, a template for piping might check for
design requirements such as basic flow diagrams, layout and arrangement diagrams, isometric
diagrams, support detail, material specification, testing requirements, and many other items. For the
design basis, the template for piping might check for pipe sizing/flow analysis, minimum wall thickness
evaluations, corrosion/erosion allowances, American Society of Mechanical Engineers (ASME) code
conformance, DOE commitments, system interface input requirements, design procedure
documentation, and many other items. Other examples of design requirement and design basis
information that could be appropriate for the templates are presented in Appendix II­B.

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