Okla. Stat. tit. 63, § 63-686.4: Designation of emergency interim successor

Each legislator shall designate not fewer than three nor more

than seven emergency interim successors to his powers and duties and

specify their order of succession. Each legislator shall review

and, as necessary, promptly revise the designations of emergency

interim successors to his powers and duties to insure that at all

times there are at least three such qualified emergency interim

successors.