Okla. Admin. Code § 35:15-9-8
Each permit holder shall keep written records for not less than five (5) years after the special sale that are necessary and adequate to determine the sources and disposition of livestock sold at the sale. Retained records shall include, but not be limited to, the following:
Amended at 23 Ok Reg 2152, eff 6-25-06
Amended at 27 Ok Reg 2411, eff 7-25-10
Amended at 36 Ok Reg 1357, eff 9-14-19
Amended at 40 Ok Reg 1501, eff 9-11-23