Corporations Code § 5041
PART 1. GENERAL PROVISIONS AND DEFINITIONS GOVERNING PARTS 1 THROUGH 5
“Class” refers to those memberships which: (a) are identified in the articles or bylaws as being a different type of membership; or (b) have the same rights with respect to voting, dissolution, redemption and transfer. For the purpose of this section, rights shall be considered the same if they are determined by a formula applied uniformly.