Technical Safety Requirements

Draft 3/1/06

FUNCTIONAL AREA GOAL: Contractor has developed, maintained, and received DOE Field Office Approval for the necessary operating conditions of a facility. The facility has also maintained an inventory of safety class and safety significant systems and components.
 

REQUIREMENTS:

• 10 CFR 830.205, Nuclear Safety Rule.
• DOE-STD-3009-2002, Preparation Guide for U. S. Department of Energy Nonreactor Nuclear Facility Documented Safety Analyses.
• DOE-STD-1186-2004, Specific Administrative Controls.

GUIDANCE:

• DOE G 423.1-1, Implementation Guide for Use in Developing Technical Safety Requirements.
• NSTP 2003-1, Use of Administrative Controls for Specific Safety Functions.

Performance Objective 1: Contractor Program Documentation: Summarize safety-significant SSCs and other aspects of defense in depth that requires TSR coverage. The scope of the TSR coverage is determined by the degree to which barriers or the facility-safety basis are seriously challenged.

Criteria:

1. Provide for each category 2 or 3 nuclear facility assurance that the TSRs as well as future changes are approved by DOE.
    
2. Provide for each category 2 or 3 nuclear facility assurance that the TSRs are derived from the documented safety analysis.
    
3. Provide similar documentation that all safety class and safety significant systems are linked to appropriate TSRs.
    
4. Provide assurance for each category 2 or 3 nuclear facility that the TSRs have sections on:
   • Safety limits
   • Operating limits, e.g. limited control settings (LSC) and limited conditions for operation (LCO)
   • Surveillance requirements
   • Administrative controls
   • Design features
   • Use and application

Suggested lines of inquiry and review approach for this performance objective

Performance Objective 2: Contractor Program Implementation

2.1 TSRs: Summarize safety-significant SSCs and other aspects of defense in depth that requires TSR coverage. The scope of the TSR coverage is determined by the degree to which barriers or the facility-safety basis are seriously challenged.

Criteria:

1. Provide for each category 2 or 3 nuclear facility assurance that the TSRs as well as future changes are approved by DOE.
    
2. Provide for each category 2 or 3 nuclear facility assurance that the TSRs are derived from the documented safety analysis.
    
3. Provide similar documentation that all safety class and safety significant systems are linked to appropriate TSRs.
    
4. Provide assurance for each category 2 or 3 nuclear facility that the TSRs have sections on:
   • Safety limits
   • Operating limits, e.g. limited control settings (LSC) and limited conditions for operation (LCO)
   • Surveillance requirements
   • Administrative controls
   • Design features
   • Use and application

Suggested lines of inquiry and review approach for this performance objective

2.2 Administrative Controls:  Administrative controls can be used to address specific accident scenarios to establish limiting conditions of operation (LCO).

Criteria:

1. Provide ACs to prevent inadvertent criticality developed by qualified personnel, reviewed by competent reviewers, and correctly incorporated and implemented in facility procedures.
    
2. TSRs may also be provided for safety management programs in the form of TSR ACs to support adequate defense-in-depth. Such all-encompassing TSRs should be used in lieu of individual TSRs for numerous specific aspects of programs unless the control is significant to specific accident risk reduction.
    
3. Identify specific administrative controls (SAC) needed to prevent or mitigate an accident scenario as appropriate. In general, SAC designation based on worker safety are limited to those administrative controls that would have been safety-significant had that safety function been provided by a safety-significant SSC. The established hierarchy of hazard controls requires that engineering controls requires that engineering controls with an emphasis on safety-related SSCs be preferable to ACs or SACs due to the inherent uncertainty of human performance.

Suggested lines of inquiry and review approach for this performance objective

Performance Objective 3: DOE Line Management Oversight

Line management should be committed to manage and maintain up to date TSRs.

Criteria:

• Line management should be committed to manage and maintain up to date TSRs.

Suggested lines of inquiry and review approach for this performance objective
 

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