Existing law, the Knox-Keene Health Care Service Plan Act of 1975, provides for the licensure and regulation of health care service plans by the Department of Managed Health Care and makes a willful violation of the act a crime. Existing law provides for the regulation of disability insurers by the Department of Insurance. Existing law requires a health care service plan contract or disability insurance policy issued, amended, or renewed on or after January 1, 2021, to provide coverage for medically necessary treatment of mental health and substance use disorders, as defined, under the same terms and conditions applied to other medical conditions. This bill would require a plan or insurer subject to the above-described coverage requirement, and its delegates, to establish a process to reimburse providers for mental health and substance use disorder treatment services that are integrated with primary care services and provided under a contract or policy issued, amended, or renewed on or after July 1, 2025. Because a willful violation of these provisions by a health care service plan would be a crime, the bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason.