California passed revolutionary new greywater standards that went into effect August 4th, 2009. These standards allow simple systems to be installed by homeowners, or professionally, without a permit.

Art Ludwig, of Oasis Design Ecological Design publishing and consulting in Santa Barbara, has much more information on the new laws at his website, including instructions for making a simple laundry-to-landscape greywater system.

Thanks for posting all of this, Art!