Added at 8 Ok Reg 3143, eff 7-18-91 (emergency)

Added at 9 Ok Reg 1495, eff 5-1-92

Amended at 17 Ok Reg 392, eff 11-1-99 (emergency)

Amended at 17 Ok Reg 2948, eff 7-13-00

Amended at 21 Ok Reg 2755, eff 7-12-04

Amended at 22 Ok Reg 2418, eff 7-11-05

Amended and renumbered to 310:641-3-25 at 33 Ok Reg 1529, eff 9-11-16