In theory, lockout/tagout (LOTO) is a simple concept. Basically, you disconnect equipment or circuits from their energy source and put a lock or tag in place, so no one can connect the equipment while you work. This should control any hazardous energy to which employees will be exposed.
On a daily basis, we hear sounds and noise in our environment from a variety of sources, such as television, radio, household appliances and traffic. However, these everyday sounds are usually at a safe volume.