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This course is offered for live-streamed or face-to-face delivery. It is available for public or in-house delivery. Please be sure to select the “online” option during the registration process if you are interested in attending a live-streamed delivery.

Register Contact for In-house Training

Locations Dates Duration Tuition
Online (8:30am EDT) June 24-28, 2024 5 half days $1,795
Houston, TX August 19-21, 2024 3 days $2,225
Houston, TX November 18-20, 2024 3 days $2,225
Singapore, Singapore December 9-11, 2024 3 days $2,395

Course Description

LOPA is a simplified form of risk assessment. It is used to comply with industry standards and regulatory expectations. Often it is used as an extension of process hazard analysis (PHA). LOPA is used to evaluate scenario risk and compare it with risk tolerance criteria to decide if existing safeguards are adequate, and if additional safeguards are needed. LOPA helps focus limited resources on the most critical safeguards.

This course teaches participants to perform LOPA studies. Worked examples are discussed and participants perform LOPA studies to gain experience using the method.

What you will learn:

  • Key process safety concepts used in LOPA
  • What you can accomplish using LOPA
  • How to identify scenarios for LOPA studies
  • How to address enablers
  • The meaning of independent protection layers (IPLs)
  • How to identify and qualify IPLs
  • The data needed for studies and their sources
  • How to estimate scenario risks
  • Criteria for making decisions on risk tolerability
  • A procedure for performing LOPA
  • How to document studies

Who Should Attend

Process safety personnel, PHA analysts and others who need to apply or understand LOPA.


An understanding of PHA and PSM and a technical background are desirable. If you are learning LOPA to comply with S84 / IEC 61511, attendance at Primatech’s S84 / IEC 61511 course or equivalent is recommended.


For streamed deliveries, 1.75 Continuing Education Credits (CEUs) or 17.5 Professional Development Hours (PDHs) are awarded.

For face-to-face courses, 2.1 Continuing Education Credits (CEUs) or 21 Professional Development Hours (PDHs) are awarded.

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