Fontana sits in San Bernardino County within the Inland Empire, one of the most populous regions in Southern California.
Detox and substance use disorder (SUD) treatment facilities operating in and around Fontana are licensed and certified by the California Department of Health Care Services (DHCS), specifically through its Substance Use Disorder Compliance (SUDC) Division’s Licensing and Certification Branch. This branch conducts biennial on-site compliance reviews, processes facility applications and investigates complaints to ensure quality care across the region.
At the county level, the San Bernardino County Department of Behavioral Health (DBH) funds and coordinates a broad network of publicly supported SUD services.
The DBH operates the Substance Use Disorder and Recovery Services (SUDRS) program, which provides withdrawal management (detoxification), residential treatment, outpatient care, intensive outpatient programs, narcotic treatment programs and youth-specific services to all county residents. Cost is based on a sliding-scale fee, and Medi-Cal may cover services at no out-of-pocket cost for eligible residents. The 24/7 access line is (800) 968-2636.
One significant development affecting Fontana residents is California’s Proposition 1, passed by voters in March 2024. This legislation, known as the Behavioral Health Services Act (BHSA), expands the former Mental Health Services Act to include SUD treatment explicitly and allocates a $6.4 billion infrastructure bond to build new treatment beds, residential care settings and supportive housing statewide.
Full implementation of this program begins July 1, 2026, and is expected to increase local treatment capacity across San Bernardino County meaningfully.
Publicly funded programs are accessible through the San Bernardino County DBH network, while private and nonprofit providers serve a broader range of insurance types and care preferences across the Inland Empire.
