Cal. EDC § 8209

(a) A physical examination and evaluation, including age-appropriate immunizations, shall be required before, or within six weeks of, enrollment in a preschool program. A standard, rule, or regulation shall not require medical examination or immunization for admission to a preschool program of a child whose parent or guardian files a letter with the governing board of the preschool program stating that the medical examination or immunization is contrary to the parent’s or guardian’s religious beliefs, or provide for the exclusion of a child from the program because of a parent or guardian having filed the letter. However, if there is good cause to believe that a child is suffering from a recognized contagious or infectious disease, the child shall be temporarily excluded from the program until the governing board of the preschool program is satisfied that the child is not suffering from that contagious or infectious disease.

(b) If only one parent has signed an application for enrollment in preschool services, as required by this chapter or regulations adopted to implement this chapter, and the information provided on the application indicates that there is a second parent who has not signed the application, the parent who has signed the application shall self-certify the presence or absence of the second parent under penalty of perjury. The parent who has signed the application shall not be required to submit additional information documenting the presence or absence of the second parent.

(c) Notwithstanding any other law, in order to promote continuity of services, a family enrolled in a state or federally funded preschool program whose services would otherwise be terminated because the family no longer meets the program income, eligibility, or need criteria may continue to receive preschool services in another state or federally funded preschool program if the contractor is able to transfer the family’s enrollment to another program for which the family is eligible before the date of termination of services or to exchange the family’s existing enrollment with the enrollment of a family in another program, provided that both families satisfy the eligibility requirements for the program in which they are being enrolled. The transfer of enrollment may be to another program within the same administrative agency or to another agency that administers state or federally funded preschool programs.