Cal. Welf. & Inst. Code § 5686.5

In order to make the most efficient use of the public funds appropriated for this purpose, counties are encouraged to maximize the use of existing public and private community resources. If voluntarily requested by the client, the community support agency shall help the client learn to manage his or her own money. Any SSI/SSP money, or other personal funds, if managed by the program or by the local office of the public guardian, shall, at all times, be considered as the client’s money. Nothing in this section, however, shall prevent a client from purchasing residential care with SSI/SSP funds.