California Code, Insurance Code - INS § 137

(a) No person, firm, association, or corporation shall act or aid in any manner in soliciting, negotiating, or procuring liability insurance in this state from a risk retention group unless that person, firm, association, or corporation is licensed as a casualty broker-agent in accordance with Chapter 5 (commencing with Section 1621) of Part 2 and is authorized to act as an insurance broker;  except salaried employees or officers of a risk retention group, provided no part of the compensation of that person is on a commission basis or otherwise based on production of business.

(b) No person, firm, association, or corporation shall act or aid in any manner in soliciting, negotiating, or procuring liability insurance from an insurer not authorized to do business in this state on behalf of a purchasing group located in this state unless that person, firm, association, or corporation is licensed as a surplus line broker in accordance with Chapter 6 (commencing with Section 1760) of Part 2.  A nonresident person may be licensed as a surplus line broker for purposes of placing insurance on behalf of a purchasing group.

(c) Any person, firm, association, or corporation licensed pursuant to Chapter 5 (commencing with Section 1621) of Part 2, on business placed with risk retention groups or written through a purchasing group, shall inform each prospective insured of the provisions of the notice required by subdivision (g) of Section 132 in the case of a risk retention group and subdivision (b) of Section 135 in the case of a purchasing group.