Okla. Stat. tit. 18, § 18-441-404: Voting by district, class, or voting group

VOTING BY DISTRICT, CLASS, OR VOTING GROUP.

(a) This section applies if the organic rules provide for

voting by district or class, or if there is one or more identifiable

voting groups that a proposed amendment to the organic rules would

affect differently from other members with respect to matters

identified in paragraphs (1) through (5) of subsection (e) of

Section 37 of this act. Approval of the amendment requires the same

percentage of votes of the members of that district, class, or

voting group required in Sections 37 and 53 of this act.

(b) If a proposed amendment to the organic rules would affect

members in two or more districts or classes entitled to vote

separately under subsection (a) of this section in the same or a

substantially similar way, the districts or classes affected must

vote as a single voting group unless the organic rules otherwise

provide for separate voting.