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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.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

April 17, 1986

John Rosenthal, P.E.
Vice President Operations
4800 Dufferin Street
Doomsview (Toronto), Ontario, Canada M3H 559

Dear Mr. Rosenthal:

This is in response to your letter of March 10 requesting guidance on the spacing of guardrail brackets used on flying forms.

The post spacing of guardrail brackets (post sockets) at 14-foot intervals would be permissible if the guardrail system provides the equivalent protection of a spacing of 8-feet.

Your effort in supplying equipment to ensure the safety of the worker in the job environment is to be commended.

If you require further information, please contact Jack Matthews at (202) 523-8132.


Leo Carey, Director
Directorate of Field Operations