Lockout-Tagout (LOTO) is a critical safety procedure used in mechanical and electrical safety management to ensure that machinery or electrical equipment is properly shut off and cannot be accidentally started while maintenance or repair work is being performed. It is designed to protect workers from hazardous energy releases, which can result in serious injuries, including electrical shocks, burns, or mechanical injuries. LOTO involves isolating energy sources, securing them in an off position, and clearly labeling them to prevent unintended operation. This process is a fundamental aspect of workplace safety and is mandated by occupational safety regulations in many countries. The first step in a Lockout-Tagout procedure is preparation. This involves identifying all energy sources connected to the equipment, including electrical, mechanical, hydraulic, pneumatic, thermal, and chemical energy. Understanding the type, magnitude, and potential hazards of these energies is crucial before beginning any maintenance task. Workers must also review the equipment’s operating procedures and energy control plan to ensure all steps are accounted