MOC Work-in-Process Documentation - Best Practices

Although most companies have an Electronic Document Management platform for managing currently released Process Safety Information, Management of Change (MOC) project, Work-in-Process (WIP) documentation is problematic due to its complexity:

• Revision and version numbering issues
• Multiple concurrent modifications to the same P&IDs and other documents
• Not all MOCs are approved and implemented
• Temporary MOCs require that documented changes be “undone”

This paper conducts a critical review of the various techniques for  managing WIP documentation for MOCs and presents specific recommendations on best practices for MOC-WIP document management. Examples from actual installed systems are presented.