What does a “lockout/tagout” procedure prevent?

The "lockout/tagout" procedure is specifically designed to prevent the accidental startup of machinery or equipment during maintenance or servicing activities. This safety protocol ensures that power sources are effectively isolated and securely locked to prevent equipment from being inadvertently turned on while workers are performing work on it. By employing locks and tags, it communicates to all personnel that the machinery should not be operated until the lockout/tagout process is properly removed, significantly reducing the risk of injuries related to unexpected machine startups.

While the other choices address important safety concerns, such as unauthorized operation and employee training, the core purpose of lockout/tagout is centered on preventing accidental equipment startup, especially when maintenance is being performed. This focus is crucial in maintaining a safe work environment in any operation involving machinery.