What determines the maximum allowable risk for a specific scenario in LOPA?

The maximum allowable risk for a specific scenario in Layer of Protection Analysis (LOPA) is determined primarily by the company's risk criteria and tolerance levels. This framework provides organizations with a structured approach to assessing risks based on what is acceptable for their specific operational and safety contexts. Each company has its own thresholds and criteria based on its business goals, stakeholder expectations, and operational limitations, which reflect its unique risk appetite.

By establishing these criteria, a company can evaluate risks more effectively and decide how much risk it is willing to accept for a given scenario. This ensures that the risk management strategy aligns with the organization's overall objectives and helps prioritize safety measures and resource allocation accordingly.

While regulatory requirements, best practices, and historical data are important considerations in the risk assessment process, they serve more as guidelines or sources of information to support the company's defined risk criteria rather than dictating the maximum allowable risk itself.