Optimizing LOPA


The Layer of Protection (LOPA) method was developed to improve the evaluation of complex scenarios. HAZOPs and What-Ifs are process hazards analysis (PHA) widely used methods for identifying hazardous scenarios and determining if existing safeguards are adequate. LOPA is a semi-quantitative method used to evaluate the risk of hazardous scenarios and safeguard effectiveness. The LOPA method removes the subjectivity inherent in HAZOPs and What-Ifs, providing more consistency and allowing greater confidence in the analysis.

Attendees will learn best practice methods on how to conduct a LOPA review. You will learn what makes up an initiating event, and how to determine whether safeguards qualify as Independent Protection Layers (IPLs). This course will include hands on exercises to help experience and practice the LOPA method.


  • What is LOPA
  • When LOPA should be used
  • How to conduct LOPA
  • Hands on practice of LOPA scenarios
  • Learn to identify Independent Protection Layers (IPL)
  • Evaluating risk using LOPA
  • Understanding/recognizing failure data
  • Understanding risk and establishing risk standard

Who Should Attend

This training is ideally suited for anyone working for or associated with the chemical or oil and gas industries, particularly those involved in project development, operations, and safety and risk management.





ioMosaic Training Institute Benefits

Top instructors with extensive industry, technical and litigation experience. Clear, practical recommendations on how to get and stay compliant.

 Course Details 
Type: Classroom Course
Language: English
Skill Level: Basic
Duration: 3 Days
PDHs: 24
CEUs: 2.4