California Code, Harbors and Navigation Code - HNC § 712

(a) No licensed broker shall employ or compensate, directly or indirectly, any person for performing any of the acts within the scope of this article who is not a licensed broker or salesman licensed under the broker employing or compensating him or her, except that a licensed broker may pay a commission to a broker of another state or country.

(b) No salesman shall accept compensation for performing any of the acts within the scope of this article from any person other than the broker under whom the salesman is at the time licensed.

(c) No licensed salesman shall pay any compensation for performing any of the acts within the scope of this article to any broker licensed under this article, except through the licensed broker under whom the salesman is at the time licensed.