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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.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

July 8, 1975

Memorandum Regarding: [29 CFR 1926.651(d)]

John K. Parsons, Area Director
Albuquerque Area Office

With reference to your request dated June 24, 1975 concerning interpretation and/or applicability of the above subject standard, I submit the following.

This standard specifically applies to employees exposed to vehicular traffic involving excavation and/or trenching operations only.

Requirements applicable to other phases of construction work where employees are exposed to vehicular traffic are stated in 29 CFR 1926.200(g) and 29 CFR 1926.201(a).

AARD - Technical Support

[Corrected 05/28/2004]