2. Use other sources, such as MSDSs, as additional references.

3. Always remember that, when in doubt, use the safest means possible .

4. The guide does not include all chemicals or all information on a chemical.

5. It does not take into account any aging or mixing of chemicals that may have occurred before you entered the site.

6. Although a court decision rolled back the more protective PELs, OSHA believes the majority of employers will continue to adhere to the higher levels of protections.