FOUR PILLARS DEFENCE AVIATION SAFETY MANAGEMENT SYSTEM Safety Policy and Objectives Safety Risk Management • Hazard identification • Safety risk assessment and mitigation • Investigation • Medical aspects to aviation safety investigations Safety Oversight and Improvement • Safety performance monitoring and measurement • The management of change • Continuous improvement of the SMS Safety Promotion • Training and education • Safety communication • Management commitment • A generative safety culture • Safety accountability and responsibilities • Appointment of key safety personnel • Co-ordination of emergency response planning • SMS documentation