245:15-21-3. Specifications for Certified Corner Records The Instruction Manual for Certified Corner Records adopted by the Board on November 14, 2008, contains the specifications for the preparation of the Certified Corner Record Form. [Source: Added at 10 Ok Reg 2211, eff 6-11-93; Amended at 23 Ok Reg 896, eff 5-11-06; Amended at 26 Ok Reg 1035, eff 5-11-09]