PHA 102: Principles of Process Hazard Analysis

COURSE DESCRIPTION                                                                                  DURATION: 2 Days

This course is designed to help the participants understand the process and regulatory requirements of a Process Hazard Analysis. It provides an overview of the various different methodologies of conducting PHA studies including HAZOP, What-If, Checklist and other techniques. Guidance is provided on selecting the proper PHA technique and participating in a PHA.  PHA techniques are described with real-life examples. Attendees participate in the demonstration PHAs led by the course instructor. After completing this course, participants will be prepared to serve as members of PHA teams or to begin team leader training. This course is recommended as a prerequisite for course PHA 203 (PHA Team Leader Training).


  • Learn how to satisfy the commonly practiced and governed process hazard analysis requirements
  • Obtain an overview of the common PHA techniques
  • Learnt how to be a member of the PHA team

  • Process safety managers, HSE personnel, plant management, engineers, O&M staff
  • Individuals leading or participating in process hazard analysis studies, scribes

  • None



  • Overview of PHAs for Engineers and Managers
    • Definitions
    • Uses
    • Benefits
    • Limitations
  • PHA Regulatory Requirements [U.S. OSHA 1910.119(e), U.S. EPA 40 CFR 68]
  • Guidelines and Roles of PHA Participants
  • Introduction to PHA Methods
    • “What-If” Studies
    • “What-If”/Checklist Studies
    • HAzard & OPerability Studies (HAZOP)
    • Fault Tree Analysis (FTA)
    • Failure Modes and Effects Analysis (FMEA)
    • Other Methods
  • Mock-team PHA exercise