California Proposition (Prop) 65 requires manufacturers, distributors, and formulators - no matter where they are headquartered - to provide "clear and reasonable" warnings on products that contain certain chemicals and are sold in California. 

While well intended, the law unfortunately continues to cause excessive lawsuits targeted at companies of all sizes. Attorneys who file the suits speculate that targeted companies will choose to settle, since it's less expensive and time consuming than an affirmative defense.