Cal. Bus. & Prof. Code § 4996.23.2
(a) An associate clinical social worker or applicant for licensure shall only perform mental health and related services as an employee or as a volunteer, not as an independent contractor. The requirements of this chapter regarding hours of experience and supervision shall apply equally to employees and volunteers. An associate or applicant for licensure shall not perform any services or gain any experience within the scope of practice of the profession, as defined in Section 4996.9, as an independent contractor. While an associate may be either a paid employee or a volunteer, employers are encouraged to provide fair remuneration.
(c) Experience shall only be gained in a setting that meets both of the following: