| # | Standard Interpretations |
|---|---|
| 1 | - 1926.451(a)(5) - Tie-in requirements for supported scaffolds; errors in Non-Mandatory Appendix E. |
| 2 | - 1926.451(a)(5) - Allowable tolerance for the height of guardrails |
| 3 | - 1926.451(a)(5) - Scaffolding as it relates to toeboards, guardrails and planking. |
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