California Code, Health and Safety Code - HSC § 125100

(a) Clinical laboratories licensed by the department, approved public health laboratories, local health departments, physicians and surgeons, or other persons engaged in the prenatal care of a pregnant woman or in the care of an infant shall maintain and make available to the department information necessary to evaluate, for public health purposes, the effectiveness of testing and followup treatment for the prevention of perinatally transmitted hepatitis B infection.

(b) The department shall make available, to the extent state funds are appropriated therefor in the annual Budget Act or federal funds are available for that purpose, money to each county requesting funds for testing and followup treatment for the prevention of perinatally transmitted hepatitis B infection or for any functions performed pursuant to subdivision (a). The money shall be allocated by the department on the basis of the incidence of perinatally transmitted hepatitis B infection and the need for necessary followup treatment and evaluation in the requesting county.