California Code, Health and Safety Code - HSC § 1515

(a) The department shall authorize county welfare departments to undertake comprehensive recruitment programs, including but not limited to media advertising, public awareness campaigns and public speaking engagements to ensure an adequate number of foster homes are available to meet the child welfare placement needs in each county.

(b) In counties in which the county has contracted with the state to license foster parents, if the county undertakes a recruitment program, it shall be done by the placement agency. The state shall not be required to perform any acts in connection with a recruitment program.

(c) The recruitment of potential foster parents shall include diligent efforts to recruit individuals who reflect the ethnic, racial, and cultural diversity of foster children.