California Code, Education Code - EDC § 49403

(a) Notwithstanding any other law, the governing board of a school district shall cooperate with the local health officer in measures necessary for the prevention and control of communicable diseases in schoolage children. For that purpose, the board may use any funds, property, and personnel of the district, and may permit a licensed physician and surgeon, or a health care practitioner listed in subdivision (b) who is acting under the direction of a supervising physician and surgeon, to administer an immunizing agent to a pupil whose parent or guardian has consented in writing to the administration of the immunizing agent.

(c) As used in this section, “supervising physician and surgeon” means the physician and surgeon of the local health department or school district that is directing the school immunization program.

(d) While nothing in this section shall be construed to require the physical presence of the supervising physician and surgeon, the supervising physician and surgeon shall require a health care practitioner under his or her direction to do both of the following:

(e) It is the intent of the Legislature to encourage school-based immunization programs, when feasible, to use the California Immunization Registry to assist providers to track patient records, reduce missed opportunities, and to help fully immunize all children in California.