Nevada

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• June 22, 2011, Department letter regarding Work Planning and Control at the Nevada National Security Site in response to the Board's March 28, 2011 letter on the subject. [PDF]
• March 28, 2011, Board letter establishing a 90-day reporting requirement for a report on work planning and control process improvements by the Nevada Site Office and National Security Technologies, LLC (NSTec). [PDF]
• February 10, 2011, Department letter responding to the Board letter of August 5, 2010, regarding safety issues at the Criticality Experiments Facility (CEF) at the Nevada National Security Site. [PDF]

• October 20, 2010, Department letter requesting an extension to February 11, 2011 in response to the Board's letter of August 5, 2010 to provide briefings and reports on deficiencies in the accident analysis, control set, and safety system design for the Critical Experiments Facility at the Nevada National Security Site. [PDF]
• August 5, 2010, Board letter establishing a 90-day reporting requirement to provide briefings and reports on deficiencies in the accident analysis, control set, and safety system design for the Critical Experiments Facility at NTS. [PDF]

• July 28, 2009, Board letter establishing a reporting requirement to provide a briefing in October 2009 on the plans to modify/upgrade the Device Assembly Facility fire protection systems. [PDF]

• August 18, 2008, Departmental letter regarding the update on the commitment made to the Defense Nuclear Facilities Safety Board (DNFSB) regarding the availability and reliability of the Device Assembly Facility (DAF) Fire Suppression System (FSS) at the Nevada Test Site. [HTML] [PDF] [DOC]
• January 18, 2008, Board letter establishing a 45-day reporting requirement describing specific actions NNSA has taken to 1) correct deficiencies in DAF's fire protection water supply, 2) the schedule to improve the reliability of DAF's fire suppression systems. [HTML] [PDF] [DOC]

• December 20, 2007, Department letter regarding the project underway at the Nevada Test Site. Ongoing project work has afforded the National Nuclear Security Administration (NNSA) an opportunity to use some of the concrete cores drilled for the CEF project to verify the DAF structure compressive strength. [HTML] [PDF] [DOC]
• November 30, 2007, Department letter summarizing the results regarding the completion of Phase 1 and Phase 2 assessments of the Safety Management Programs and safety related Structures, Systems and Components at the Device Assembly Facility (DAF) at the Nevada Test Site. [HTML] [PDF] [DOC]
• October 15, 2007, Board letter regarding the full assumption of responsibility and accountability for managing and operating all nuclear and radiological facilities at the Nevada Test Site by National Security Technologies, LLC (NSTec). The Board supports the transition, but will be closely following the implementation of actions required to satisfy NNSA's objective. [HTML] [PDF] [DOC]
• October 1, 2007, Department letter transmitting NNSA Central Technical Authority (CTA) guidance to the Office of the Deputy Administrator for Defense Programs regarding expectations that the safety bases and controls be finalized and approved before a Contractor Readiness Assessment begins. [HTML] [PDF] [DOC]

• December 7, 2006, Department letter forwarding NNSA's response to safety-related design issues raised in Board letter dated September 22, 2006 regarding the Criticality Experiments Facility (CEF) Project Preliminary Documented Safety Analysis (PDSA). [HTML] [PDF] [DOC]
• September 22, 2006, Board letter establishing a reporting requirement on how safety-related issues on the Critical Experiments Facility project are being addressed. [HTML] [PDF] [DOC]
• September 19, 2006, Department letter responding to Board letter dated August 16, 2006 regarding structural cracks at the Device Assembly Facility at the Nevada Test Site. [HTML] [PDF] [DOC]
• August 16, 2006, Board letter requesting a response within 60 days regarding existing structural cracks at the Device Assembly Facility (DAF) at the Nevada Test Site. [HTML] [PDF] [DOC]
• July 18, 2006, Department letter regarding lightning protection and detection issues at the Nevada Test Site. [HTML] [PDF] [DOC]
• June 19, 2006, Board letter establishing a 60-day reporting requirement for NNSA to describe its plans for staging, assessing, and disposition of a damaged nuclear weapon or improvised nuclear device at the G-Tunnel at the Nevada Test Site. [HTML] [PDF] [DOC]
• June 2, 2006, Department letter responding to Board letter dated March 27, 2006 regarding review of the Criticality Experiments Facility (CEF) Project design. [HTML] [PDF] [DOC]
• April 26, 2006, Department letter regarding Device Assembly Facility (DAF) Safety Basis Implementation Plan (SBIP). [HTML] [PDF] [DOC]
• March 27, 2006, Board letter establishing a 60-day reporting requirement regarding issues at the Criticality Experiments Facility. [HTML] [PDF] [DOC]
• March 13, 2006, Department letter regarding the Device Assembly Facility (DAF). [HTML] [PDF] [DOC]

• November 28, 2005, Board letter establishing a 60-day reporting requirement regarding safety management programs and vital safety systems at the Device Assembly Facility (DAF) at the Nevada Test Site. [HTML] [PDF] [DOC]
• July 25, 2005, Department letter regarding G-Tunnel upgrades at the Nevada Test Site. [HTML] [PDF] [DOC]
• June 15, 2005, Department letter regarding building leaks and structural cracks at the Device Assembly Facility at the Nevada Test Site. [HTML] [PDF] [DOC]
• May 16, 2005, Department letter regarding results of a condition assessment and mapping of building leaks and structural cracks at the Device Assembly Facility at the Nevada Test Site. [HTML] [PDF] [DOC]
• March 28, 2005, Board letter establishing a 120-day reporting requirement regarding electrical and lightning protection systems for several facilities at the Nevada Test Site. [HTML] [PDF] [DOC]
• February 8, 2005, Department letter regarding Device Assembly Facility operations at the Nevada Test Site. [HTML] [PDF] [DOC]

• November 23, 2004, Department letter providing status of NNSA's portion in Commitment 4.1.4 in the 2002-1 implementation plan, Quality Assurance for Safety-Related Software, which requires NNSA personnel assigned to Software Quality Assurance positions to have qualifications in accordance to the Technical Qualification program. [HTML] [PDF] [DOC]
• November 10, 2004, Department letter regarding implementation of the guidance on Facility Representative training and staffing analysis. [HTML] [PDF] [DOC]
• November 3, 2004, Board letter establishing a 90-day reporting requirement regarding deficiencies in the Device Assembly Facility (DAF). [HTML] [PDF] [DOC]
• October 27, 2004, Board letter establishing a 90-day reporting requirement regarding the Department's commitment to develop a program for archiving safety-related activities at the Pantex Plant, the Y-12 National Nuclear Complex, and the Nevada Test Site relative to implementation plan 93-6, Maintaining Access to Nuclear Weapons Expertise. [HTML] [PDF] [DOC]
• September 17, 2004, Department letter reporting site-wide evaluations of training and qualification programs at Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Nevada Test Site. [HTML] [PDF] [DOC]
• August 6, 2004, Board letter establishing a 45-day reporting requirement regarding site-wide evaluations of training and qualification programs at Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Nevada Test Site and after completion, a 30-day reporting requirement on corrective action plans to address evaluation findings. [HTML] [PDF] [DOC]
• July 15, 2004, Department letter regarding a training assessment for the Device Assembly Facility (DAF) at Nevada Site Office. [HTML] [PDF] [DOC]
• June 4, 2004, Department letter forwarding the National Nuclear Security Administration (NNSA) Site Office Functions, Responsibilities and Authorities Manuals (FRAMs), and plans for updating safety-related Orders, Standards, and supplemental Directives. [HTML] [PDF] [DOC]
• May 14, 2004, Department letter regarding review of electrical and lightning protection and detection systems for facilities at the Nevada Test Site. [PDF]
• April 27, 2004, Department letter regarding the schedule for the training assessment of the Device Assembly Facility. [HTML] [PDF] [DOC]
• March 8, 2004, Department letter forwarding the Quality Assurance Program assessment reports for Pantex, Los Alamos, Nevada, and Livermore Site Offices, completing Action 1.3.1 of the Quality Assurance Improvement Plan. [HTML] [PDF] [DOC]
• January 21, 2004, Board letter regarding hoisting and rigging at the Nevada Test Site. [HTML] [PDF] [DOC]

• October 17, 2003, Department letter providing requested clarifications for NNSA sites regarding habitability-related High Efficiency Particulate Air (HEPA) filters. [HTML] [PDF] [DOC]
• October 16, 2003, Department letter regarding completion of National Nuclear Security Administration evaluations of site quality assurance programs as described in commitment 3.2.1 of the Department's Quality Assurance Improvement Plan. [HTML] [PDF] [DOC]
• July 1, 2003, Board letter regarding review of electrical and lightning protection and detection systems for facilities at the Nevada Test Site. [HTML] [PDF] [DOC]

• October 3, 2002, Department letter forwarding an initial Phase II Assessment Report form the Nevada Operations Office, Waste Examination Facility, Visual Examination and Repackaging Building, Confinement Ventilation System relative to the 2000-2 implementation plan. [PDF]
• March 7, 2002, Board letter enclosing a staff issue report on the safety basis and readiness of the Waste Examination Facility at Nevada Test Site. [PDF]