| # | Letters of Interpretation |
|---|---|
| 1 | - 1926.451(f)(15)(iii) - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction. |
| 2 | - 1926.451(f)(15), 1926.451(f)(15)(iii) - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction. |