HSE CASE / Safety Case / HSEIA

An HSE Case provides a documented demonstration that risk reduction philosophies and measures have been developed and implemented at each phase of the Opportunity Realisation Process (ORP) to ensure that the risks from Major Accident Hazards (MAH) are tolerable and As Low as Reasonably Practicable (ALARP) through the systematic application of the Hazards and Effects Management Process (HEMP) as set out in the PDO HSE Management System (HSE-MS).
HSE cases are required for the following reasons:
⦁ To demonstrate the practical implementation of Corporate HSE Management assets/facilities.
⦁ To provide assurance to stakeholders that hazards are identified assessed to appropriate levels and residual risks are being managed to As Low As Reasonably Practicable (ALARP) levels.
⦁ To regularly update changes to specific asset/facility risk profiles due to continued activities.
⦁ To identify HSE Critical activities/ tasks, HSE Critical processes and HSE Critical positions relevant for specific asset/facilities and thereby enabling them to manage day effectively and safely to day operations/activities and associated hazards.
⦁ To quickly find information about Major Accident Hazard and controls that exists for a specific asset or facility during an emergency.
⦁ To serve as a reference document for modification projects (to help understand interface, integration issues), Hardware Barrier Assessment (HBA), Level 1 and Level 2 AIPSM audits, Incident investigation, Annual Letter of Assurance (LOA).
Purposes:
For demonstration of the following requirements.
⦁ To identify and manage hazards with severity five or red risk on the Risk Assessment Matrix (RAM).
⦁ To develop a Statement of Fitness (SoF) for the Projects/Assets

HSE Cases and Opportunity Realisation Process (ORP)
Opportunity Realization Process and applicable HSE case and update requirement are shown in the figure below.