This document outlines the principles and process of continual risk assessment. It defines risk assessment as the continuous process of identifying hazards, assessing risks, taking action to eliminate or reduce risk, and monitoring and reviewing in changing circumstances without stopping operations or creating unnecessary paperwork. It describes the phases of initial assessment, continued assessment during a task, and post-task review and debriefing to record lessons learned. Key aspects of risk assessment include determining risk attitude, organizational responsibility to provide training and safety measures, and personal responsibility of individuals to perform tasks competently and recognize their own limitations.