| # | Letters of Interpretation |
|---|---|
| 1 | - 1926.651(e) - Whether it is permissible for an employee to remain in a trench box when materials are being lowered into it by a backhoe. |
| # | Letters of Interpretation |
|---|---|
| 1 | - 1926.651(e) - Whether it is permissible for an employee to remain in a trench box when materials are being lowered into it by a backhoe. |