As we have discussed about LOTO in the previous blog about as it requires that hazardous energy sources be "isolated and rendered inoperative" before work is started on the equipment in question. The isolated power sources are then locked and a tag is placed on the lock identifying the worker who placed it. The worker then holds the key for the lock, ensuring that only he or she can remove the lock and start the machine. This prevents accidental startup of a machine while it is in a hazardous state or while a worker is in direct contact with it. LOTOTO is a step further seeking safety cutting out any means possible for shortcut by involving last two step of "TRY OUT" to reassure the former steps taken are completed without leaving behind any possible hazards; hence LOTOTO assure the effectiveness of itself is optimum at all the times.