Ceslas LOTO system allows the user to create LOTO maps/trees (Lockout & Tagout) of machines/equipment or processes through a modern and intuitive application. Blocking points and inoperability tests are mapped and installed using RFID technology with NFC reading from the users own mobile device, significantly increasing productivity and increasing the safety of people and processes.LOTO makes it possible to manage those involved in daily activities, controlling their skills and areas of activity, also allowing an excellent managerial view of ongoing activities, using humanized floor plans and augmented reality technology. LOTO has integrated interfaces with our electronic work permit tool (APR-PTe).