OSHA requires that the lock out tag out procedure be inspected at least annually. This is the minimum requirement, but best practice suggests more frequent checks. These audits ensure that the authorized employees know their duties and are performing them correctly. Regular evaluation keeps the safety program dynamic and responsive to changes in the facility's operations. https://www.oshepro.com/blog-details.php?Slug=mastering-lockout-tagout-loto-safeguarding-your-workplace