Cal. Welf. & Inst. Code § 4659.1
(a) If a service or support provided pursuant to a consumer’s individual program plan under this division is paid for, in whole or in part, by the health care service plan or health insurance policy of the consumer’s parent, guardian, or caregiver, the regional center may, when necessary to ensure that the consumer receives the service or support, pay any applicable copayment, coinsurance, or deductible associated with the service or support for which the parent, guardian, or caregiver is responsible if all of the following conditions are met:
(b) If a service or support provided to a consumer 18 years of age or older, pursuant to the consumer’s individual program plan, is paid for in whole or in part by the consumer’s health care service plan or health insurance policy, the regional center may, when necessary to ensure that the consumer receives the service or support, pay any applicable copayment, coinsurance, or deductible associated with the service or support for which the consumer is responsible if both of the following conditions are met:
(c) If a service or support provided pursuant to a consumer’s individualized family service plan pursuant to the California Early Intervention Services Act (Title 14 (commencing with Section 95000) of the Government Code) is paid for, in whole or in part, by the health care service plan or health insurance policy of the consumer’s parent, guardian, or caregiver, the regional center shall pay any applicable copayment, coinsurance, or deductible associated with the service or support for which the parent, guardian, or caregiver is responsible if both of the following conditions are met:
(d) Notwithstanding paragraph (2) of subdivision (a) or paragraph (1) of subdivision (b), a regional center may pay a copayment, coinsurance, or deductible associated with the health care service plan or health insurance policy for a service or support provided pursuant to a consumer’s individual program plan if the family’s or consumer’s income exceeds 400 percent of the federal poverty level, the service or support is necessary to successfully maintain the child at home or the adult consumer in the least-restrictive setting, and the parents or consumer demonstrate one or more of the following: