Cal. Welf. & Inst. Code § 4681.1
(a) The department shall adopt regulations that specify rates for community care facilities serving persons with developmental disabilities. The implementation of the regulations shall be contingent upon an appropriation in the annual Budget Act for this purpose. These rates shall be calculated on the basis of a cost model designed by the department that ensures that aggregate facility payments support the provision of services to each person in accordance with his or her individual program plan and applicable program requirements. The cost model shall reflect cost elements that shall include, but are not limited to, all of the following:
(b) The cost model shall take into account factors that include, but are not limited to, all of the following:
(c) The rates established for individual community care facilities serving persons with developmental disabilities shall reflect all of the model cost elements and rate development factors described in this section. The cost model design shall include a process for updating the cost model elements that address variables, including, but not limited to, all of the following: