What is the difference between lockout and tagout?

Lockout is the placement of an energy isolation device on a piece of equipment to render it inoperable. A lockout uses a lock to hold an energy-isolating device in a safe position and prevents the energization of the machine or equipment. Tagout is when a tag is placed on a piece of equipment to indicate that the equipment being controlled may not be operated until the tagout device is removed.

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1. Can I wear a respirator while performing my job?
2. What is a confined space?
3. What air monitoring needs to be performed prior to entering a confined space?
4. When do I have to wear a hardhat?
5. What is the service life for fall protection?
6. What is the difference between lockout and tagout?