Cal. Gov. Code § 9107
There is hereby created the Joint Rules Committee which shall have the membership specified in the Joint Rules of the Senate and the Assembly. The committee herein created has a continuing existence and may meet and act during sessions of the Legislature or any recess thereof and in the interim periods between sessions. The provisions of the Joint Rules of the Senate and Assembly relating to investigating committees shall apply to the committee herein created and it shall have all the powers and authority provided in said rules, in Section 11 of Article IV of the Constitution of California, and in this article. Any action of the committee shall require an affirmative vote of not less than a majority of the Senate members and a majority of the Assembly members of the committee.
Ca. Gov. Code § 9107