The California Code of Regulations Title 17, Division 1, Chapter 4, Article 1. Section (M) states:
For purposes of this Article, “vaccine” means an immunization administered in the United States of America or other countries that is recommended by the federal Advisory Committee on Immunization Practices for the prevention of the respective diseases identified in section 120335 of the Health and Safety Code.
All California schools and pre-kindergarten (child care/preschool) facilities are required to assess and annually report the immunization status of their enrollees. For more information on how to report please go to the CDPH Shots for Schools website.
CDPH has prepared resources for parents on required immunizations, where to get a child immunized, the difference between required and recommended vaccines and more. Resources for Parents (ca.gov)