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| # | Letters of Interpretation |
|---|---|
| 1 | - 1928.57 - Standards that apply to cotton gins |
| 2 | - 1928.57 - Shielding of drive lines on pivotal sprinklers and an interpretation of the words "guarded by location". |
| 3 | - 1928.57 - OSHA requirement for guarding power take-off (PTO) shafts on agricultural equipment. |
| 4 | - 1928.57(c)(5)(ii) - "Electrical Disconnect Means" as they relate to center pivot irrigation systems. |
| 5 | - 1928.57 - Guarding of cotton ginning equipment standards. |
| 6 | - 1928.57 - Guarding of machinery used in the processing of seed corn. |
| 7 | - 1928.57 - Agricultural farm equipment standards. |
| 8 | - 1928.57 - Guarding of Farm Field Equipment, Farmstead Equipment, and Cotton Gins. |