The CSB issues safety recommendations to prevent the recurrence or reduce the likelihood or consequences of similar incidents or hazards in the future. Recommendations are issued to a variety of parties, including government entities, safety organizations, trade unions, trade associations, corporations, emergency response organizations, educational institutions, and public interest groups. Recommendations are published in CSB reports and are closed only by vote of the Board. The CSB tracks all recommendations and communicates regularly with recommendations recipients to ensure that the recommended corrective actions are implemented. For more information, see Frequently Asked Questions about CSB recommendations.
2025-05-I-PA-1
Review the Shell Polymers Monaca Ethane Cracking Unit process hazard analysis to identify process deviations that are addressed solely with administrative controls. Implement an inherently safer design or an engineered control for any scenario identified that could result in a fatality, serious injury, or substantial property damage. Status: Open - Awaiting Response or Evaluation/Approval of Response
Review the Shell Polymers Monaca Ethane Cracking Unit process hazard analysis to identify process deviations that are addressed solely with administrative controls. Implement an inherently safer design or an engineered control for any scenario identified that could result in a fatality, serious injury, or substantial property damage.
2025-05-I-PA-2
Based on licensor input and good industry practices, such as ANSI/ISA-61511-2-2018 / IEC 61511-2:2016, Functional Safety – Safety Instrumented Systems for the Process Industry Sector – Part 2: Guidelines for the application of IEC 61511-1:2016 and Part 3: Guidance for the Determination of the Required Safety Integrity Levels, implement and maintain an engineered control to prevent backflow of cracked gas into a furnace during all modes of furnace operation. Status: Open - Awaiting Response or Evaluation/Approval of Response
Based on licensor input and good industry practices, such as ANSI/ISA-61511-2-2018 / IEC 61511-2:2016, Functional Safety – Safety Instrumented Systems for the Process Industry Sector – Part 2: Guidelines for the application of IEC 61511-1:2016 and Part 3: Guidance for the Determination of the Required Safety Integrity Levels, implement and maintain an engineered control to prevent backflow of cracked gas into a furnace during all modes of furnace operation.