| # | Letters of Interpretation |
|---|---|
| 1 | - 1926.451(b)(5)(ii) - Whether it is permissible to use a concrete block hanging on a coupling pin as a counterweight to prevent a scaffold from tipping. |
| 2 | - 1926.451(b)(5)(i) - Whether it is permissible to use a concrete block hanging on a coupling pin as a counterweight to prevent a scaffold from tipping. |
| 3 | - 1926.451(b)(5), 1926.451(b)(5)(i), 1926.451(b)(5)(ii) - Whether it is permissible to use a concrete block hanging on a coupling pin as a counterweight to prevent a scaffold from tipping. |