A STKY control must target an energy source and effectively prevent or mitigate exposure to the energy source. Which of the following is a STKY control? Voltage tester Worker experience performing energized work Stop-work authority Situational awareness

STKY control refers to a control measure that targets an energy source and effectively prevents or mitigates exposure to it. Among the options provided:<br /><br />1. **Voltage tester** - This is a tool used to detect the presence of voltage, which can help in identifying energized circuits but does not directly prevent or mitigate exposure.<br /><br />2. **Worker experience performing energized work** - While experience is valuable, it is not a direct control measure for preventing or mitigating exposure to energy sources.<br /><br />3. **Stop-work authority** - This allows workers to halt operations if they identify unsafe conditions, thereby preventing potential exposure to hazardous energy sources. It is a proactive control measure.<br /><br />4. **Situational awareness** - This involves being aware of one's surroundings and potential hazards, which is important for safety but is more of a personal skill than a specific control measure.<br /><br />The most appropriate STKY control from the list is **Stop-work authority**, as it directly empowers individuals to prevent exposure to hazardous energy by stopping work when necessary.