Cal. Gov. Code § 56845

If the commission appoints additional members to the reorganization committee to represent the public and orders the reorganization committee, as so enlarged, to continue its study, the additional members shall have all of the rights and powers of members representing a single subject district, including participation in all studies, reports, and recommendations, attendance at all meetings, and the casting of a single vote on behalf of all of the additional members on any matter before the committee.