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Electrical switches on locomotives at grain elevators

Summary An attorney requested a variance for a locomotive used near grain elevators. OSHA said unenclosed electrical switches amid grain dust could support a general duty citation, but the administrative controls described in the application appeared to make a variance unnecessary. OSHA archives the letter.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1978-08-21
Date issued
August 21, 1978
Status
Archived by the agency
OSHA labels this an archive document and warns that it may no longer represent OSHA policy.
Status last verified October 10, 2026

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OSHA labels this an archive document and warns that it may no longer represent OSHA policy. It may no longer reflect the agency's current position. Treat this page as historical context, not current guidance, and verify current law before relying on anything here.
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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.

August 21, 1978

Dean G. Kratz, Attorney
McGrath, North, O'Malley,
Kratz, Dwyer, O'Leary &
Martin, P.C.
[Recipient address omitted]
Dear Mr. Kratz:

This is in response to your letter dated July 12, 1978, requesting a permanent variance from section 1910.309(a), Article 502-6(b) National Electrical Code, of the Occupational Safety and Health Standards. Your letter was forwarded to this office to determine if the standard applies in the situation described in your application.

29 CFR 1910.309(a) could be used as supporting material in a section 5(a)(1) violation of the Occupational Safety and Health Act of 1970 in circumstances where a locomotive with electrical switches, not properly enclosed, used in grain elevator loading or unloading areas that produce grain dust. However, it appears that if the administrative controls are implemented, as indicated in your variance application for the locomotive, a variance is unnecessary.

For information, I have enclosed a copy of a memorandum to our field staff dated May 19, 1978.

If I may be of any further assistance, please feel free to contact me.

Sincerely,
John K. Barto, Chief
Division of Occupational
Safety Programming

Enclosure

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