The person with the highest level of responsibility shall have a second key to employees' locks.
Keys to employees' locks shall be kept in a secure location and made available only to the person with the highest level of responsibility on site. A record indicating that a second key has been removed shall be maintained on site. If a master key system is used with the second key system, the same control process shall apply.
Tags
It is recommended that a tag stating DANGER-Do Not Operate, DANGER-Do Not Start, Do Not Open, Do Not Close, Do Not Energize or another appropriate warning be used along with the lock when equipment or machinery is locked out.
Tags shall be placed to clearly identify the equipment of circuits being worked on.
Tags shall be given the same level of respect and treatment as locks. However, please remember: Power or energy isolation control by locking out is the most accepted method of safety control since tags are warning devices which can be easily removed, bypassed, obscured or ignored.
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