California Code, Corporations Code - CORP § 12224

“Approval by (or approval of) the members” means approved or ratified by the affirmative vote of a majority of the votes represented and voting at a duly held meeting at which a quorum is present (which affirmative votes also constitute a majority of the required quorum) or written ballot in conformity with Section 12463 or by the affirmative vote or written ballot of such greater proportion of the votes of the memberships of any class, unit, or grouping of members as may be provided in the bylaws or in this part for all or any specified member action.