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.)
Okla. Stat. tit. 63, § 686.8