1. (a) A trace-forward herd is any herd that received cervidae from an affected herd up to sixty (60) months prior to the death of the affected cervid.
2. (b) A trace-back herd is any herd where an affected cervid resided up to sixty (60) months prior to death.

Added at 18 Ok Reg 635, eff 1-24-01 (emergency)

Added at 18 Ok Reg 1020, eff 5-11-01

Amended at 20 Ok Reg 797, eff 5-12-03

Amended at 21 Ok Reg 746, eff 4-26-04