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| # | Letters of Interpretation |
|---|---|
| 1 | - 1926.1417 - Regarding setting time restrictions by crane operator testing organizations for crane-certification test. |
| 2 | - 1926.1417(p) - Whether a tower crane boom or counterweight may be used over public streets or occupied buildings |
| 3 | - 1926.1417(c)(1) - OSHA's position on using a crawler crane that has been derated by the crane manufacturer. |
| 4 | - 1926.1417(a) - OSHA's position on using a crawler crane that has been derated by the crane manufacturer. |
| 5 | - 1926.1417, 1926.1417(a), 1926.1417(c)(1) - OSHA's position on using a crawler crane that has been derated by the crane manufacturer. |