What category of LOTO identifies all energy sources for equipment isolation?

The correct answer is C, which refers to Category Z in the context of Lockout/Tagout (LOTO) procedures. This category is specifically designated for identifying all energy sources for equipment isolation, making it essential for ensuring that energy sources are completely controlled and that employees are protected during maintenance activities.

Understanding this category is crucial, as it encompasses a comprehensive approach to identifying various types of energy sources—such as electrical, mechanical, hydraulic, pneumatic, chemical, thermal, and others—that may be present in the equipment being serviced. By effectively marking and controlling these energy sources, maintenance workers can work safely, reducing the risk of accidental energization or release of hazardous energy.

The other categories mentioned, like PRCS Category Z, Category EE, and Category EA, pertain to different aspects of safety protocols but do not directly focus on the complete identification of all energy sources for isolation under LOTO procedures. Thus, recognizing the distinction of Category Z allows for a thorough understanding of energy isolation requirements, which is fundamental in creating a safe working environment for maintenance tasks.