Sober living facilities, also known as recovery residences or drug and alcohol-free housing, have been largely unregulated for years. There are many laws, regulations, rules, and guidelines that govern substance use disorder treatment programs, including mandatory licensure and oversight at the state level. But, to the extent sober living facilities have been subject to governmental oversight. They have largely been done on a local level. Some municipalities have attempted to limit the proliferation of sober living homes and regulate how sober living facilities operate through zoning laws, mandatory safety standards, and other local measures. States themselves have been slow to regulate this growing industry.