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• Standard Number: 1926.403; 1926.449

January 7, 1992

Mr. Victor Mondello
Norfolk Electric
19 Bradston Street
Boston, Massachusetts 02118

Dear Mr. Mondello:

This is in response to your November 6 letter requesting Occupational Safety and Health Administration (OSHA) concurrence or comment on the equipment you intend to use to furnish temporary power for a construction site.

In regard to whether the equipment listed in your letter is in compliance with OSHA rules please be advised that all electrical conductors and equipment must be approved (29 CFR 1926.403(a)). The definitions of "approved" and "acceptable" in 29 CFR 1926.449 indicate that the Agency will accept equipment that has been determined to be safe by a qualified electrical testing laboratory (i.e., a National Recognized Testing Laboratory or NRTL). The Electrical Testing Laboratory of the City of Los Angeles is not currently recognized by OSHA. A list of NRTL's is enclosed for your information.

If we can be of any further assistance, please contact Mr. Roy Gurnham or Dale Cavanaugh of my staff in the Office of Construction and Maritime Compliance Assistance at (202) 523-8136.

Sincerely,



Patricia K. Clark, Director
Directorate of Compliance Programs

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