Okla. Stat. tit. 63, § 63-686.8: Oaths

Promptly after designation each emergency interim successor

shall take the oaths required for the legislator to whose powers and

duties he is designated to succeed. No other oath shall be

required. The oath shall be administered (by the Speaker of the

House of Representatives for the emergency interim successors

designated for that house, and by the President Pro Tempore of the

Senate for the emergency interim successors designated to serve for

the Senate.)