Businesses operating or selling products in the state of California must comply with Proposition 65, which requires a warning when individuals are exposed to chemicals with certain hazardous properties. While administering a warning label may be simple in concept, Prop 65 compliance implementation is more difficult as it requires businesses to evaluate what chemicals are in their products and area of business, as well as check them against an ever-changing list of substances. Failing to comply with the act can leave a business vulnerable to civil lawsuits, so it is important companies remain up to date. A process to gather chemical information from a company’s supply chain in a streamlined manner should be implemented. In addition, products must be checked against the current regulatory list to avoid expensive litigation.