FSE 224 – Layer of Protection Analysis for the Practitioner

Course Information


This course is designed for practitioners and those who are either participants in facilitated layer of protection analysis (LOPA) or simply want a better understanding. It covers all facets of performing LOPA. It lays the foundation with basic probability math and event tree analysis, as well as topics on human error and common mode failure. The transition to LOPA from a basic HAZOP is covered, considering the impact of corporate risk criteria. Initiating causes, enabling events, independent layers of protection, and conditional modifiers are all covered. To drive the methodology home, hands on workshops are conducted.


Organizer Notes

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Course Duration

2 days


Target Audience

  • Process Safety Engineers
  • Process Control Engineers
  • Safety Instrumented Systems Engineers
  • Process Engineers
  • Reliability Engineers


Skills You Will Learn

  • How to assess the risk of a process hazard
  • Understanding tolerable risk guidelines
  • Transferring information from HAZOP to LOPA worksheets
  • How to perform a Layer of Protection Analysis
  • Understanding where to find data for initiating events and independent layers of protection (IPL)
  • Learn the difference between a safeguard and an IPL
  • Understanding enabling conditions and conditional modifiers
  • How to consider multiple initiating events and outcomes in a LOPA study
  • SIL determination using LOPA

 Course Topics

  • Risk Criteria
  • Probability Math and Logic Models
  • Human Error
  • Data Considerations
  • Common Mode Failure
  • Initiating Events
  • Independent Layers of Protection
  • Alarm Layer of Protection
  • Enabling Conditions
  • Conditional Modifiers
  • Safety Integrity Level Selection
  • Course Review


What Participants will get

  • Course Manual with class exercises and solutions
  • Certificate of Completion

Course Fees

Exclusive rates available for early bird and group signups! Contact us for more details!

Course Schedule