Health and Safety Code, §25249.5 et seq. of the California Safe Drinking Water and Toxic Enforcement
Act of 1989 (Proposition 65) requires
anyone who, during the course of doing business in California, knowingly and intentionally exposes
an individual to a chemical known to the State to cause cancer or reproductive toxicity to first
give a clear and reasonable warning regarding the presence of such chemicals.
Drilling, sawing, sanding or machining wood products generates wood dust and may release titanium
dioxide. Wood dust and titanium dioxide are substances known to the State of California to cause
Safety Data Sheets for Weyerhaeuser products are available
here. Download the warning sign (two signs per page for easy printing).