The California Office of Environmental Health Hazard Assessment (OEHHA) oversees implementation of California's chemical exposure warnings law, commonly known as Proposition 65. This law requires businesses to provide warnings before people are exposed to chemicals on the state’s Proposition 65 list. The law applies to businesses with 10 or more employees that operate or sell products in California and includes the sale of products to people in the state over the Internet and through catalogs.
OEHHA's oversight includes maintaining the Proposition 65 list of chemicals through a variety of mechanisms. OEHHA also provides guidance to businesses and consumers. This includes the development of regulations to help businesses provide clear and reasonable warnings. This also includes the development of fact sheets that explain why certain chemicals are on the Proposition 65 list, how they are used, and how individuals can reduce their exposure to these chemicals.
Proposition 65, officially known as the Safe Drinking Water and Toxic Enforcement Act of 1986, became law in November 1986, when California voters approved it by a 63-37 percent margin.
The California Office of Environmental Health Hazard Assessment (OEHHA) oversees implementation of Proposition 65. To learn more about OEHHA, please visit our homepage.