California Prop 65 warning requirements for products containing listed chemicals — applicable to consumer goods sold to California customers including furniture, food-contact items, and general merchandise.
What this covers
Any product containing a Proposition 65-listed chemical that is sold to California consumers must carry a clear and reasonable warning — and 'sold to California consumers' includes online sales that ship to California. The OEHHA maintains the official list of chemicals known to cause cancer or reproductive harm, and sellers are responsible for knowing which chemicals their products contain. Safe harbor warning language has specific required formats; a generic 'California residents' disclaimer without the correct chemical name and exposure route does not satisfy the standard.
Start with the current guidance below, then use recent updates for context on what shifted.