Generally refers to the operation of a commercial endeavor from the home. Local municipalities may regulate such usage, often restricting such businesses to those with no onsite customer traffic, noise, deliveries or storage of goods. Although associations often urge that the operation of such business violates the “single family residential use” that claim is not well-supported, at least as to businesses which have no external impacts on the community. Further, California law defines certain commercial uses (such as family day care for children, and home care for the disabled or elderly) as consistent with a “single family residential use,” and provide that CC&Rs may not be interpreted to preclude that use. See, e.g., Health and Safety Code §§1597.40, 11834.20–11834.25.