SMS is an acronym used in safety processes. What does SMS stand for?

• A. Safety Metrics System
• B. System Management Safety
• C. Safety Monitoring System
• D. Safety Management System

Answer: (D)

SMS in aviation safety refers to a Safety Management System, a formal framework that weaves safety into every part of airline operations. It’s more than just watching data or checking boxes; it’s an integrated approach that includes setting safety policies, identifying hazards, assessing and mitigating risks, ensuring ongoing safety assurance, and promoting a safety culture across the organization. This systemic, management-wide focus is why Safety Management System is the best answer. The other options—while they might describe parts of safety work—do not reflect the established term used to describe the overall framework for managing safety in flight operations.