10 CFR 830.203, Unreviewed Safety Question Process and DOE Guide 423.1-1, with respect to its impact on Department nuclear safety.

DOE-STD-1183-2004

o. Discuss the application of the graded approach relative to Technical Safety Requirements.

p. Perform a review of a Safety-class or Safety-significant SSC including walking down the

associated surveillance requirements and LCO/LCS.

23. Nuclear safety specialists shall demonstrate a working level knowledge of 10 CFR

830.203, Unreviewed Safety Question Process and DOE Guide 423.1-1, with respect to

its impact on Department nuclear safety.

Supporting Knowledge and/or Skills

a. Discuss the purpose of the Unreviewed Safety Question process.

b. Discuss the reasons for performing an Unreviewed Safety Question determination.

c. Define the following terms:

Discrepant as found condition

Potential inadequacy in the safety analysis

Proposed Change

d. Define the conditions for an Unreviewed Safety Question.

e. Describe the responsibilities of contractors authorized to operate defense nuclear facilities

for the performance of safety evaluations.

Describe the actions to be taken by a contractor upon identifying information that indicates

a potential inadequacy of safety analyses or, a possible reduction in the margin of safety as

defined in the Technical Safety Requirements.

g. Discuss the qualification and training requirements for personnel who perform safety

evaluations.

h. Discuss the actions to be taken if it is determined that a Potential Inadequacy in the Safety

Analysis is involved.

Discuss the following terms as they apply to Unreviewed Safety Questions:

Categorical exclusions

Prior Unreviewed Safety Question Determinations

Inconsequential changes

Margin of Safety

Design/Evaluation Basis Accidents

Important to Safety

Safety Basis

Restoration modification

Evaluation of safety

Unreviewed safety question

Justification for continued operations

Discuss the responsibilities of the contractor associated with Unreviewed Safety Question

summaries and the USQ procedure.

k. Describe DOE's responsibilities when not agreeing with a negative determination.