Cal. Welf. & Inst. Code § 18291
For purposes of this chapter:
(b) “Cohabitant” means two unrelated adult persons living together for a substantial period of time, resulting in some permanency of relationship. Factors that may determine whether persons are cohabiting include, but are not limited to, all of the following:
(c) “Domestic violence shelter” means a shelter for domestic violence victims that meets all of the following requirements: