Keystone has in depth experience in a wide range of science-based stockpile stewardship activities.  Science-based stockpile stewardship takes advantage of large-scale computing and laboratory experiments to provide the basis to sustain the nation's nuclear stockpile without above or below ground tests.  Much of this work is ongoing at either the Nevada Test Site (NTS) or the National Weapons Laboratories (Lawrence Livermore, Sandia, and Los Alamos).  Keystone has supported all three of the laboratories and the NTS at their home locations. 

Specific examples of Keystone support activities include, but are not limited to: taking the lead role in developing and drafting the annual Underground Nuclear Testing (UGT) Readiness Assessment, leading staff efforts in nuclear test resumption planning and UGT infrastructure support; and developing, updating, and maintaining the UGT Decision Support System.  The UGT Decision Support System is a modeling and simulation device to examine a full range of variables, resources and possible scenarios pertinent to the possible resumption of UGT.  Keystone also supported the National Weapons Laboratories in preparation, execution, and documentation on Sub-critical Experiments; assisted in the drafting of numerous execution plans; and assisted with a wide range of safety analyses and environmental sampling efforts at the NTS.

Keystone personnel also provide a myriad of technical services support for the following DOE/NNSA programs:

• Joint Actinide Shock Physics Experimental Research (JASPER)
• Underground Nuclear Test (UGT) Readiness Assessments
• Subcritical Experiments U1a Complex
• Device Assembly Facility (DAF)
• Z Machine - the world's largest X-ray generator
• Dual-Axis Radiographic Hydrodynamic Test (DARHT)