Cal. Health & Safety Code § 124040
(a) The governing body of each county or counties shall establish a community child health and disability prevention program for the purpose of providing early and periodic assessments of the health status of children in the county or counties by July 1, 1974. However, this shall be the responsibility of the department for all counties that contract with the state for health services. Contract counties, at the option of the board of supervisors, may provide services pursuant to this article in the same manner as other county programs, if the option is exercised prior to the beginning of each fiscal year. Each plan shall include, but is not limited to, the following requirements:
(6) The health screening and evaluation part of each community child health and disability prevention program plan shall include, but is not limited to, the following for each child: