The document discusses maximizing the potential for rainwater harvesting for indoor use in California. It outlines Neal Shapiro's presentation for a forum on the topic, including: 1) A brief history of rainwater catchment around the world and in the US; 2) Definitions of water resources in California's water code; 3) Examples of local rainwater harvesting systems for indoor use; 4) Efforts in Southern California to promote rainwater harvesting; 5) LA County's public health policy on rainwater harvesting; 6) Current state efforts; and 7) Key issues for debate and resolution related to indoor rainwater harvesting.