LOTO stands for Lockout/Tagout, which is a safety procedure that ensures that dangerous machines are properly shut off and are not able to unexpectedly release hazardous energy during maintenance activities. LOTO is a part of an energy control program that includes established procedures for using locks and tags, lockout/tagout procedures, policies, and equipment, and periodic reviews and inspections of the system. The six steps of LOTO safety and lockout/tagout procedures include preparation, shutdown, isolation, lockout/tagout, stored energy check, and isolation verification. The procedure involves isolating and securing the energy sources of the machines or equipment before performing any service or maintenance work. LOTO also prevents unauthorized or accidental start-up of the machines or equipment by applying locks and tags that indicate who is working on them and why. LOTO applies to all equipment, machinery, or system shut downs before authorized personnel can perform repairs or service. LOTO procedures must be written down in an easy-to-understand step-by-step sequence that accounts for the safe shut down of all hazardous energy sources, including stored energy. LOTO is a vital safety measure that protects workers from the hazards of unexpected startups or unauthorized energization or start-up of machines or equipment.