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2 API RECOMMENDED PRACTICE 1646 <br /> 1.4.9 Medium Or High Risk Activity <br /> 1.4.9.1 medium risk activities are: <br /> • barricading and work area isolation. <br /> • lock-out/tag-out, <br /> • rigging,hoisting and lifting, <br /> • driving. <br /> 1.4.9.2 high risk activities are: <br /> • confined space entry, <br /> • hot work, <br /> • working at heights, <br /> • excavation work. <br /> 1.4.10 MOC—Management of Change:The broad concept of MOC is to anticipate and prevent incidents that maybe cre- <br /> ated due to changes in all aspects of an operation;from personnel and contractor selection to equipment replacement and repair to <br /> site conditions and chemical exposures <br /> 1.4.11 permit loads:Any load carried by a vehicle that requires a permit from any regulatory agency. <br /> 1.4.12 person in charge:The individual responsible for a specific site or operation. <br /> 1.4.13 spotter:A person positioned outside of a vehicle to direct a driver where the driver has no clear view of the area. <br /> 2 General Knowledge <br /> Minimum Required Knowledge <br /> 2.1 HOW TO PERFORM JSA AND APPLY COMMON SAFETY WORK PRACTICES TO SPECIFIC ACTIVITIES <br /> Purpose: The Pre-Task Job Safety Analysis (JSA) is a requirement to help identity work hazards and preventive measures <br /> before starting any task. <br /> Who should use:Individuals,teams doing the same task,and/or groups of workers or teams doing different tasks in the same <br /> general area. <br /> When to use:Before starting work and reviewed when work conditions change such as changes in weather,job scope,or equip- <br /> ment.A different craft beginning work in the area is another case where a review is appropriate. <br /> Who participates:All stakeholders whether site employees or contractors. <br /> How to perform: <br /> Evaluate these two questions for the work to be performed: <br /> • What may go wrong? <br /> • What is the worst thing that may happen if something does go wrong? <br /> Analy_e risks and ways to reduce them: <br /> • Use a standardized Job Safety Analysis form. <br /> • Identify potential hazards specific to the project such as hazardous materials present,or communication requirements. <br /> • Identify potential hazards specific to the site such as vehicular traffic or flammable vapors present. <br /> • Identify potential hazards specific to the task to be performed. <br /> • Assure that workers performing the work are properly trained to do so. <br /> • List ways to eliminate or mitigate the hazard so the task can be done safely. <br /> • Review and/or prepare appropriate safety materials for the tasks and hazards. <br /> • Communicate the safety plan to the site manager,project supervisor and others as appropriate. <br />