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Standard Interpretations - Table of Contents
• Standard Number: 1910.1200

January 25, 1995

The Honorable James A. Barcia
House of Representatives
Suite 502 301 East
Genesee Saginaw, Michigan 48607

Dear Congressman Barcia:

Thank you for your letter of October 13, concerning an inquiry from your constituent, Mr. Jerome Bouverette, related to the Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard (HCS). Mr. Bouverette requested clarification of the purpose of Material Safety Data Sheets (MSDSs), which are required to be developed and distributed under (the HCS.

MSDSs are specified by section 1910.1200(g) of the HCS (enclosed). The MSDS lists the hazardous ingredients of a product, its physical and chemical characteristics (e.g. flammability, explosive properties), its effect on human health, the chemicals with which it can adversely react, handling precautions, the types of measures that can be used to control exposure, emergency and first aid procedures, and methods to contain a spill. When new regulatory information, such as exposure limits, or new health effects information becomes available, the MSDS must be updated to reflect it.

Employers and employees need the information contained on MSDSs to protect themselves from hazardous chemical exposures and to work safely with chemical products. The result will be a reduction in chemical source illness and injuries in the workplace. Since the HCS became effective, the use and distribution of MSDSs have proven to be an effective and efficient way to ensure that employers and employees can obtain necessary information on the hazards associated with exposure to chemicals in the workplace.

It should also be noted that MSDSs are only required for hazardous chemicals. In reality, MSDSs are prepared and provided for many products that are not covered by the HCS. It is our understanding that this is being done for product liability purposes, not for compliance with any Federal regulation. In fact, MSDSs were prepared and made available by many producers prior to implementation of regulatory requirements. In addition, many customers request MSDSs on all products, whether they are hazardous or not. This practice has also encouraged producers to provide MSDSs for non-hazardous products. While OSHA does not require or encourage this practice, we certainly do not have the authority to prohibit producers from distributing such MSDSs.

We hope this information is helpful to you. Please contact OSHA's Office of Health Compliance Assistance at (202) 219-8036 if you have any additional questions.


Joseph A. Dear Assistant Secretary

Standard Interpretations - Table of Contents

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