System-Safety Program Plan

The purpose of the system safety program plan (SSPP) is to identify the specific system safety requirements for a given project, to include specified system safety tasks, risk assessment methodology and risk acceptance criteria, system safety products and milestones, and system safety organization. 

The SSPP is prepared at the initiation of the project and updated at each review point, generally at the end of each life cycle phase. 

The SSPP is prepared by the system safety manager and the safety staff and is reviewed and approved by the general manager and the project manager. 

System Safety for the 21 Century The Updated and Revised Edition of System Safety 2000, by Richard A. Stephans 

Input requirements for the system safety program plan are available project description data and requirements, provisions, or guidance provided externally and/or from internal system safety planning procedures. 

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System Safety 2000 by Joe Stephenson. This book begins with a history of and the fundamentals of system safety. Then, the author moves into system safety program planning and management, along with system safety analysis techniques. About half of the book is devoted to those techniques. A safety generalist would find it a good and not too difficult read. 

The plan developed by the contractor to meet the system safety program requirement of the government (as specified in the contract) is generally called the system safety program plan (SSPP). 

The system safety program plan generally includes detailed information about system safety personnel (responsibilities, qualifications, and level of effort), procedures (tasks to be performed and techniques to be used), and products (format and schedule). 

The MORT tools and techniques can be helpful in preparing a safety analysis report (SAR), the upstream safety product most frequently required for new DOE programs, but the more common system safety products (system safety program plan, preliminary hazard analysis, system/subsystem hazard analysis, operating hazard analysis) are not a dominant part of the MORT program and are seldom even referenced in System Safety Development Center (SSDC) documents. 

Who generally prepares the system safety program plan (SSPP) ... 

Afternoon—System safety program planning and management (overview of Part 2)... 

Step 13 Prepare system safety program plans... 

The SSWG reviews the system safety program plan and verifies that the phases, milestones, and review points are accurate and adequate (Fig. 9-5). If necessary, these items are revised. 

The system safety working group expands the PHL into a PHA as described in Chapter 8 (or as outlined in the system safety program plan). 

Based on the results of the PHA, recommendations made by 30% review boards, and guidance provided in the system safety program plan, detailed hazard analyses are made of specified (critical) subsystems. The techniques for these SSHAs are as outlined in the system safety program plan or as selected by the SSWG. Failure modes and effects analysis (FMEA) and/or fault tree analysis (FTA) are generally the techniques of choice. Software hazard analysis, common cause analysis, and/or sneak circuit analysis may also be appropriate. 

Based on the system safety program plan and recommendations from other analyses (PHA, SSHAs), a system hazard analysis (SHA) may be required. The SHA is initiated as soon as input data from the SSHAs are available and completed at the review milestone indicated in the SSPP, normally around 60% design. 

Who prepares the system safety program plan (SSPP) Who performs the primary tasks outlined in the plan Who provides the system safety guidance and policy to develop an SSPP ... 

Residual risks should be formally accepted and documented as outlined in the acceptance criteria and the system safety program plan (Fig. 11-5). 

System safety program plan A description of the planned methods to be used by the contractor to implement the tailored requirements of this standard, including organizational responsibilities, resources, methods of accomplishment, milestones, depth of effort, and integration with other program engineering and management activities and related systems (MIL-STD-882). 

ISSPP Integrated system safety program plan... 

During the concept phase, historical data and technical forecasts are developed as a base for a system hazard analysis. A Preliminary Hazard Analysis (PHA) is conducted during this phase. At the gross level, a Risk Analysis (RA) is performed to ascertain the need for hazard control and to develop system-safety criteria. Safety management will be doing the initial work on the System Safety Program Plan (SSPP). Three basic questions must be answered by the time the concept phase is completed ... 

ISSPP Integrated System Safety Program Plan... 

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