Which statement best summarizes the purpose of a safety case in high-hazard industries?

• A. A schedule for maintenance tasks.
• B. A structured argument and evidence that major hazards have been reduced to tolerable levels.
• C. A training plan for new hires.
• D. A reporting template for near-misses.

Answer: (B)

The main idea being tested is that a safety case is a structured argument, backed by evidence, that the major hazards of a facility have been reduced to tolerable levels and that the operation is safe. In high-hazard industries, regulators expect a defensible case that shows how risk is controlled through specific safety barriers, management systems, and ongoing assurance activities, rather than just plans or templates.

This is why the best choice is a statement about a structured argument and evidence demonstrating that major hazards have been reduced to tolerable levels. It captures both the logical reasoning and the supporting data needed to justify safety, and it aligns with how safety cases are used to gain and maintain regulatory confidence.

The other options miss the core purpose: a maintenance schedule focuses on tasks and timing, a training plan concentrates on people’s competence, and a near-miss reporting template deals with learning from incidents rather than providing a comprehensive risk justification for operation.