California Code, Government Code - GOV § 8281.5

(b)(1) The Members of the Legislature appointed to the committee serve at the pleasure of the appointing power and shall participate in the activities of the committee to the extent that the participation is not incompatible with their respective public offices as Members of the Legislature.

(2) For purposes of this article, those Members of the Legislature constitute a joint interim investigating committee on the subject of Section 8290.5 and, as a joint interim investigating committee, have the powers and duties imposed on those committees by the Joint Rules of the Senate and Assembly.

(c)(1) The members appointed by the Governor shall be appointed for a term of four years. The terms of the members first appointed expire as follows:

(2) When a vacancy occurs in any office within the committee filled by appointment by the Governor, the Governor shall appoint a person to the office, who shall hold office for the balance of the unexpired term of the person's predecessor.