Unreviewed Safety Question

Unreviewed Safety Question (USQ) means a situation where:
(1) The probability of the occurrence or the consequences of an accident or the malfunction of equipment important to safety previously evaluated in the documented safety analysis could be increased;
(2) The possibility of an accident or malfunction of a different type than any evaluated previously in the documented safety analysis could be created; or
(3) The documented safety analysis may not be bounding or may be otherwise inadequate.

Source

10 CFR § 830.3


Scoping language

The following definitions apply to this part:

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