Requirements for CLP®

Layers of protection analysis (LOPA) enhances the results of PHA studies by providing more objective estimates of the risks of hazard scenarios. Such risk estimates play a critical role in decisions on the adequacy of the safety of processes. Consequently, it is essential that individuals who lead LOPA studies meet a standard for competence. Three increasing levels of competency are offered: Practitioner, Specialist and Expert.

This certification is intended for a process safety professional who is ready to take the role of team leader for LOPA studies. A Practitioner has a minimum of one year of relevant experience. This level of certification indicates that the professional has the knowledge and understanding to lead LOPA studies competently.

Primacert expects that a Certified LOPA Practitioner using the designation CLP® can demonstrate competency by meeting the following requirements:


Academic Qualifications

  • A degree from an accredited university or college in a relevant technical discipline. At a minimum, degree includes three years relevant, full-time tertiary education.
  • If you do not meet these requirements, you may contact PCS to inquire about alternative qualifications.


  • A minimum of one year of recent and relevant work experience.


  • Successful completion within the last three years of a training course designed to teach participants how to conduct a LOPA study, such as Primatech's Layers of Protection Analysis for Process Safety Management.


  • Two references from supervisor / manager / peer who can attest to academic qualifications, work experience and professional ethics.


  • Successful completion of the Primacert examination for CLP®.
  • For a list of examination topics, see LOPA Examination Topics.


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