documentation that has been both field-verified and design-verified to be consistent with
the "as-built" or actual physical configuration.
Contractors should perform design assessments to determine the consistency among the
documented design and system requirements, the system documentation (including
drawings and procedures), and the physical configuration of the nuclear facility. The
audit should confirm the completeness and accuracy of the design and system
requirements documented in the DSA, the TSRs, and other authorization basis
documents. In particular, during these audits the contractor should verify that the safety
basis and authorization basis documents accurately reflect any modifications made to the
facility or changes made to the activity since the previous design assessment.
One reason for ensuring that the documented design and system requirements continue to
be accurate is to provide accurate information for operations, training, and maintenance
documents and activities. Contractors should also ensure that operations, training, and
maintenance documents are maintained consistent with the documented design and
Ideally, contractors should schedule the design assessments at a time appropriate to
support the annual update of the safety basis.