Standard Interpretations
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OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.
- 1910 Subpart S - Acceptable job-made extension cords. - 06/17/1992
- 1910 Subpart S - Application of 29 CFR 1910 Subpart S to design of industrial machinery - 12/16/2013
- 1910 Subpart S - Clarification of the Electric Power Generation, Transmission, And Distribution Standard, 29 CFR 1910.269. - 05/09/1995
- 1910 Subpart S - Clarification of the Electrical Standard as it applies to flexible power cords on appliances. - 09/09/1997
- 1910 Subpart S - Contractor shop-made extension cords. - 03/03/1992
- 1910 Subpart S - Distinction between premises wiring installations and electric transmission or distribution installations. - 08/16/1996
- 1910 Subpart S - Electrical Conductor Identification. - 12/18/1997
- 1910 Subpart S - Electrical standards and computer security devices. - 06/24/1992
- 1910 Subpart S - Electrical standards and the application to electrically-powered medical devices. - 05/12/1997
- 1910 Subpart S - Incorporation of NFPA 70E-2000 into OSHA standards. - 10/18/2006
- 1910 Subpart S - LOTO of hydraulic systems; postal workers' exposure to hazardous material spills. - 11/10/1999
- 1910 Subpart S - NRTL requirements for shielding gas regulators. - 04/24/2012
- 1910 Subpart S - Standards applicable to an automatic transfer device for processing and moving product. - 01/16/2004