Unreviewed Safety Question (USQ) Process

DOE-HDBK-XXXX-2005

06/30/2005

B. The possibility of an accident or malfunction of a different type than any

evaluated previously in the documented safety analysis could be created;

C. A margin of safety could be reduced; or

D. The documented safety analysis may not be bounding or may be otherwise

inadequate. [10 CFR 830.3]

[10 CFR 830.3]

648.

UNREVIEWED SAFETY QUESTION (USQ) PROCESS. A process to determine when

DOE is to be involved in decision making involving a USQ. [Based on DOE O 5480.21]

[DOE G 450.4-1B]

649.

UNREVIEWED SAFETY QUESTION PROCESS. The mechanism for keeping a safety

basis current by reviewing potential unreviewed safety questions, reporting unreviewed

safety questions to DOE, and obtaining approval from DOE prior to taking any action

that involves an unreviewed safety question. [10 CFR 830.3]

650.

UPGRADE. A design and construction measure taken to increase the resistance of

structures, systems, and components for the effects of natural phenomena hazards.

Upgrade, strengthening, and retrofit are equivalent terms. [DOE O 5480.28] [EH62dd1]

[DOE G 420.1-2]

USE AND APPLICATIONS PROVISIONS. The basis instructions for applying

651.

technical safety requirements. [10 CFR 830.3]

VALIDATION (PROCEDURES). The determination that a procedure is usable and

652.

accomplishes the task for which it was written. [EH62dd1]

653.

VALUE ENGINEERING (VE). An organized effort directed at analyzing the functions

of systems, equipment, facilities, services, and supplies for the purpose of achieving the

essential functions at the lowest life-cycle cost consistent with required performance,

reliability, quality, and safety. For the purpose of DOE O 430.1B, value analysis, value

management, and value control are considered synonymous with VE. [DOE O 430.1B]

654.

VERIFICATION (DESIGN). Process of checking that the retrieved design information

is complete and has been accurately translated from the source documents. [EH62dd1]

105

DRAFT