What does lock-out/tag-out refer to?

Lock-out/tag-out (LOTO) is a safety procedure used to ensure that machines or energy sources are properly shut off and unable to be started up again before maintenance or servicing work is completed. This practice is crucial in preventing accidental release of hazardous energy, which can cause serious injury or death to workers.

The term "lock-out" refers to the process where a device is locked to prevent equipment from being energized, while "tag-out" involves placing a tag on the equipment indicating that it cannot be operated until the tag is removed. Together, these practices control energy sources, making it clear that equipment is not to be touched during repair or maintenance, thus enhancing worker safety.

Understanding lock-out/tag-out is essential in any environment where there is a risk of equipment startup or energy release. This is especially important in confined spaces, where the risks can be even greater due to limited access and the potential presence of hazardous materials.