Cal. Educ. Code § 44267
The minimum requirements for a services credential with a specialization in health are:
(c) Such additional requirements as may be prescribed by the commission.
The services credential with a specialization in health shall authorize the holder to perform, at all grade levels, the health service approved by the commission as designated on the credential. Services as an audiometrist, occupational therapist, or physical therapist are not deemed health services within the meaning of this section.