Cal. Welf. & Inst. Code § 4691
(b) For the purpose of ensuring that regional centers may secure high-quality services for persons with developmental disabilities, the State Department of Developmental Services shall promulgate regulations establishing program standards and an equitable process for setting rates of state payment for community-based day programs. These regulations shall include, but are not limited to, all of the following:
(3) The rate determination processes for establishing rates, based on the allowable costs of the allowable cost components. Different rate determination processes may be developed for establishing rates for new and existing programs, and for the initial and subsequent years of implementation of the regulations. The processes shall include, but are not limited to, all of the following:
(F) A procedure for increasing established rates as a result of Budget Act appropriations made pursuant to the ratesetting methodology established pursuant to Section 4691.5 and subdivision (c) of this section.
The department shall develop these regulations in consultation with representatives from organizations representing the developmental services system as determined by the department. The State Council on Developmental Disabilities, and other organizations representing regional centers, providers, and clients shall have an opportunity to review and comment upon the proposed regulations prior to their promulgation. The department shall promulgate these regulations for all community-based day programs by July 1, 1990.
(d) Using the reported costs of day programs reimbursed at a permanent rate and the standards and ratesetting processes promulgated pursuant to subdivision (b) as a basis, the department shall report to the Legislature as follows: