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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.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

January 28, 1976

Mr. Jay. J. Davin,
Safety Director
G. A & F. C. Wagman, Inc.
General Contractors
4200 Susquehanna Trail,
North, R.D. 5
York, Pennsylvania 17402

Dear Mr. Davin:

This is in response to your letter dated January 20, 1976 concerning crawler cranes.

Section 1926.550(b) of the Construction Standard (copy enclosed) gives requirements for crawler cranes used in construction work, and has no requirement for back-up alarm. However, if this equipment is used for earthmoving, Section 1926.602(a), which does require back-up alarm under certain conditions, will apply.

Your interest in occupational safety and health is appreciated.

Sincerely yours,

Regional Administrator