AB138 will allow the de minimus collection of precipitation from single family roofs for domestic use and to provide water to wildlife.
You will no longer have to apply for water rights or for a permit to appropriate water for these purposes.
I’d like to see this bill amended to include the collection of the “gray water” from a home’s sinks (not the commode…) for use as irrigation water for plants and the lawn. I don’t see any public health issues, with normal use. The very diluted soap is even a fairly decent fertilizer.