Standard Interpretations - Table of Contents
• Standard Number: 1926.502

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 11, 2001

Mr. Ted Palmer
Protective Roofing Products Ltd.
10 Pinelands Ave., Unit #5
Stoney Creek, Ontario
[Canada] L8E 3A5

Re: PR 600 Mobile Fall Protection System

Dear Mr. Palmer:

This is in response to your letter of August 9, 2000, and follow-up communications in which you ask OSHA to review the PR 600 Mobile Fall Protection System. OSHA is generally precluded from approving or endorsing specific products. The variable working conditions at job sites and possible alteration or misapplication of an otherwise safe piece of equipment could easily create a hazardous condition beyond the control of the equipment manufacturer. However, where appropriate, we try to give some guidance to help employers assess whether products are appropriate to use in light of OSHA requirements.

The information in the materials you submitted, including tests by a testing service, indicates that, if an employer follows the manufacturer's instructions for the use of the PR 600 Mobile Fall Protection System (including the additional instruction outlined below from your