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.
- 1926 Subpart K - Acceptable job-made extension cords. - 06/17/1992
- 1926 Subpart K - All electric tools need to be tested by a qualified national testing laboratory and be listed and labeled - 01/28/1994
- 1926 Subpart K - Contractor shop-made extension cords. - 03/03/1992
- 1926 Subpart K - Electric utility industry concerns. - 10/03/1986
- 1926 Subpart K - Electrical Standards for Construction, Revised Subpart K - 02/20/1987
- 1926 Subpart K - Lockout and tagging of circuits; §1926.417 - 09/28/2006