Okla. Stat. tit. 26, § 26-1-112: Ranked choice voting prohibited

A. No election conducted by the State Election Board, a county

election board, or any municipality authorized to conduct elections

in Oklahoma shall use ranked choice voting, ranked voting,

proportional ranked voting, preferential voting, or instant runoff

voting.

B. As used in this section, "ranked choice voting", "ranked

voting", "proportional ranked voting", and "preferential voting"

shall mean any voting system whereby a voter ranks candidates in a

sequence from first, second, third, and onward on a ballot to

determine a winning candidate.

C. As used in this section, "instant runoff voting" shall mean

any voting system whereby a voter ranks candidates in a sequence

from first, second, third, and onward to determine which candidates

advance to a general election.

D. Any existing or future ordinance enacted or adopted by a

county, municipality, or any other local government entity which is

in conflict with this section is void. Any election for any public

office in this state conducted under a voting system prohibited by

this section is void.

E. The Secretary of the State Election Board, or the President

Pro Tempore of the Oklahoma State Senate and the Speaker of the

Oklahoma House of Representatives jointly, shall have the authority

to bring a civil action in an appropriate court for such declaratory

or injunctive relief as is necessary to carry out this section.