A loto procedure is a safety procedure that is used to ensure that all safety measures are followed when working with hazardous materials. It stands for Lock Out/Tag Out and is used to ensure that all machines and equipment are properly shut down and locked out before any maintenance or repair work is done. The procedure involves locking out the power source of the machine or equipment, and then tagging it with a warning sign to indicate that it is not to be operated until the work is completed. This is done to prevent accidental activation of the machine or equipment while the work is being done, which could lead to serious injury or death. Loto procedures are an important part of any safety program and should be followed whenever working with hazardous materials.