Cal. Welfare and Institutions Code § 5865.3

When a county system of care services children, zero to five years of age, the following structures and services shall be available, and when not available, the county plan shall identify a timeline for the development of these services: (a) Collaborative agreements with public health systems, regional center services, child care programs, CalWORKs providers, drug and alcohol treatment programs, child welfare services, and other agencies that may identify children and families at risk of mental health problems that affect young children. (b) Outreach protocols that can assist parents to identify child behaviors that may be addressed early to prevent mental or emotional disorders and assure normal child development. (c) Identification of trained specialists that can assist the parents of very young children at risk for emotional, social, or developmental problems with treatment. (d) Performance measures that ensure that services to families of very young children are individual, identified by the family, and developmentally appropriate.