Cal. Bus. & Prof. Code § 4980.11
(a) Notwithstanding Section 4980, a person who holds a license in another jurisdiction of the United States as a marriage and family therapist may provide marriage and family therapy services in this state for a period not to exceed 30 consecutive days in any calendar year, if all of the following conditions are met:
(b) A person who intends to provide marriage and family therapy services pursuant to this section shall provide the board with all of the following information before providing services: