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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.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 28, 1991

Mr. Thomas R. Hays
Director, Environmental Law
Owens-Corning Fiberglass Corporation
Fiberglass Tower
Toledo, Ohio 43659

Dear Mr. Hays:

Thank you for your letter of May 30, regarding the warning labels of Owens-Corning Fiberglass products under the Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard, 29 CFR 1910.1200. Your letter forwarded for our review a copy of a "new" label intended for use by Owens-Corning for products that contain fiberglass wool.

The label you forwarded contains the following hazard warning: "Contains fiberglass wool. Possible cancer hazard. To avoid this possible cancer hazard, minimize breathing fiberglass wool dust." In addition, the warning: "May cause irritation to skin, eyes and respiratory tract" also appears on the label.

This specific language serves to provide employees with appropriate hazard warning information for this particular product. The label appears to meet the intent of the HCS and would therefore be in compliance with the requirements of OSHA's Hazard Communication Standard. We might add that OSHA has no enforcement action pending against your company in this matter.

We hope this information is helpful to you and appreciate your patience for the delay of this response. Please feel free to contact us again if we can be of further assistance.


Patricia K. Clark, Director
Directorate of Compliance Programs