Ground fault protection for a construction job-site trailer.
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. This 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. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
February 16, 1993
Mr. Philip P. Mercuris
Director of Safety
Master Builders of Iowa
221 Park Street
P.O. Box 695
Des Moines, Iowa 50303
Dear Mr. Mercuris:
This is in response to your December 22 letter requesting an interpretation of an Occupational Safety and Health Administration (OSHA) ground-fault protection for a construction job-site trailer.