California does not license sober living homes the way it licenses treatment facilities. Homes that provide only housing and peer support are generally considered residential uses and are not overseen by the Department of Health Care Services. Voluntary certification exists through the California Consortium of Addiction Programs and Professionals (CCAPP), a NARR affiliate, and through networks like the Sober Living Network. When a listing mentions a state license, it usually means an affiliated treatment program is licensed, not the housing itself. Ask any home about certification, house rules, refund policies, and how it handles relapses before moving in.