Archive Notice - OSHA Archive

NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.

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


June 20, 1974




Associate Assistant Regional Director
for Technical Support
SUBJECT: Field Information Memorandum #74-39
Requests for Standards Interpretation


This is in response to your letter of May 24, 1974 and the attachment from Naramore Bain Brady and Johanson, dated May 10, 1974.

If a stairway were intended for employee use only, the provisions of part 1910.23(d) would be applicable. The design of stairways wider than 88 inches without an intermediate stair railing, in buildings intended primarily for public use as described in the architects' letter, does not fall within the purview of OSHA.

Barry J. White
Associate Assistant Secretary
for Regional Programs