| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.147(c)(5)(ii) - Use of LOTO device on equipment placed in "out of service" status not related to servicing or maintenance. |
| 2 | - 1910.147(c)(5)(ii)(B) - Color is not the only prescribed factor for the standardization of LOTO devices. |
| 3 | - 1910.147(c)(5) - Use of verification tags for lockout. |