Cal. Educ. Code § 22461
(a) Upon retaining the services of a retired member under Section 24114, 24116, 24214, 24214.5, or 24215, the school district, community college district, county superintendent of schools, California State University, or other employing agency shall do both of the following regardless of whether the retired member performs the services as an employee of the employer, an employee of a third party, or an independent contractor: